Descendants of
Philibert van Serooskerke 
(gen 9-11 of 13 generations)
 
 

       IX-1 (VIII-2-1) 
            1  Barones Sophie Adrienne Henriette van Tuyll van Serooskerken 
               Born 3 July 1838 Utrecht 
               Died 7 April 1907 Geneve 

       IX-2 (VIII-3-1) 
            1  Baron William van Tuyll van Serooskerken 
               Heer van Coelhorst 
               Born 25 September 1845 Muenchen 
               Died 17 October 1903 Wien, Austria 
               Married 5 January 1881 's-Gravenhage 
               Countess Mathilde van Limburg-Stirum, daughter of Count 
               Leopold van Limburg-Stirum and Julie Marie Barre 
               Born 24 July 1854 Warmond, Castle Warmond 
               Died 14 May 1932 Popham, England 
                         Children, Generation X-1 

            2  Barones Marie Louise van Tuyll van Serooskerken 
               Born 25 July 1848 Niagara, Canada 
               Died 18 August 1903 H.Clingendaal, Wassenaar 
               Married 16 November 1865 's-Gravenhage 
               Baron Arnold van Brienen, Heer van de Groote Lindt, son of 
               Baron Willem Thierrij Arnold Maria van Brienen van de 
               Groote Lindt and Barones Ida Charlotte Nicolette Selby 
               Born 18 July 1839 Wassenaar, H.Clingendaal 
               Died 4 January 1903 at sea between Italy and Egypt 

            3  Barones Sophie Mathilde van Tuyll van Serooskerken 
               Born 14 December 1850 's-Gravenhage 
               Died 5 August 1905 Malvern 
               Married 11 January 1868 's-Gravenhage 
               John Reginald Yorke 
               Born 25 January 1836 Forthamptoncourt 
               Died 27 March 1912 London 

            4  Barones Henriette Amelie van Tuyll van Serooskerken 
               Born 14 November 1853 Baden-Baden 
               Died 27 April 1936 Tylehurst, Forest Row, Sussex 
               Married 25 February 1874 London 
               Charles Needham, son of Francis Jack Needham, 2nd Earl of 
               Kilmorey and Poricella Anne Hostes 
               Born 20 July 1844 Twickenham 
               Died 25 February 1934 Tylehurst, Forest Row, Sussex 

            5  Barones Eleonore van Tuyll van Serooskerken 
               Born 28 September 1855 Baden-Baden 
               Died 17 October 1934 Wien 
               Married 27 November 1879 Wassenaar 
               Count Heinrich von Luetzow, Herr von Strelzhof, son of Count 
               Franz von Luetzow, Herr von Drei-Luetzow and Henriette 
               Seymour 
               Born 11 September 1852 Baden nr Wien 
               Died 8 November 1935 Wien 

            6  Baron Vincent Maximiliaan van Tuyll van Serooskerken 
               Born 10 April 1857 Baden-Baden 
               Died 8 November 1911 London 
               Married 1 June 1896 London 
               Elizabeth Myra Watson, daughter of Robert Watson 
               Born 11 April 1860 Baynaldstown, Ireland 
               Died 25 January 1914 Paris 
                         S.P. 

            7  Baron Charles Frederic van Tuyll van Serooskerken 
               Born 17 March 1859 Baden-Baden 
               Died 2 June 1893 between Honolulu & San Francisco 
               Married 17 June 1884 London 
               Louise Emily Harford, daughter of William Henry Harford, of 
               Oldown and Ellen Tower 
               Born 21 September 1864 Henbury 
               Died 11 October 1945 
                         Children, Generation X-2 

       IX-3 (VIII-5-3) 
            1  Barones Cornelia van Tuyll van Serooskerken 
               Born 3 June 1832 Amsterdam 
               Died 15 June 1833 Haarlem 

            2  Barones Cornelia Wilhelmina van Tuyll van Serooskerken 
               Born 24 September 1833 Amsterdam 
               Died 11 April 1857 Utrecht 
               Married 15 December 1853 Amsterdam 
               Count Willem van Limburg-Stirum, son of Count Otto Jan 
               Herbert van Limburg-Stirum and Barones Josephine Arnoldine 
               Rengers 
               Born 2 March 1822 's-Gravenhage 
               Died 22 November 1888 's-Gravenhage 

            3  Baron Jan Maximiliaan van Tuyll van Serooskerken 
               Born 1 March 1835 Amsterdam 
               Died 15 March 1835 Amsterdam 

            4  Baron Jan Maximiliaan van Tuyll van Serooskerken 
               Heer van Vleuten 
               Born 20 May 1838 Amsterdam 
               Died 14 May 1904 Bruxelles 
               Married 23 November 1871 Heemstede                  
               Barones Louise Anna Elisabeth van Utenhove, daughter of 
               Baron Jacob Gerrit Willem van Utenhove and Anna Willink 
               Born 4 July 1843 Amsterdam 
               Died 8 December 1933 Zeist 
                         S.P. 

            5  Baron Ernst Louis Leopold van Tuyll van Serooskerken 
               Born 30 May 1845 Amsterdam 
               Died 30 May 1846 Amsterdam 

            6  Baron Ernst Louis Leopold van Tuyll van Serooskerken 
               Born 15 September 1848 Amsterdam 
               Died 1 November 1898 Velsen, H.Schoonenberg 
               Married 24 October 1871 Amsterdam 
               Alicia Ann Thekla Watson, daughter of Thomas Colclough 
               Watson and Eliza Holmes Reed 
               Born 9 September 1849 Plymouth, Devon 
               Died 6 April 1929 Bloemendaal 
                         Children, Generation X-3 

            7  Baron Frederik Willem van Tuyll van Serooskerken 
               Born 27 March 1851 Amsterdam 
               Died 13 February 1924 's-Gravenhage 
               Married 4 February 1874 Velsen 
               Jkvr. Maria Boreel, daughter of Jhr. Mr. Willem Boreel, 
               Heer van Hogelanden, 9th Baronet and Jkvr. Jacoba 
               Margaretha Boreel 
               Born 24 March 1850 's-Gravenhage 
               Died 27 January 1919 Vogelenzang 
                         Children, Generation X-4 

       IX-4 (VIII-6-1) 
            1  Baron Ir. Frederik Leopold van Tuyll van Serooskerken 
               Heer van Zuilen, Sweserengh, Westbroek 
               Born 1 August 1858 Utrecht 
               Died 14 October 1934 Locarno 
               Married (1) 12 August 1885 Renkum 
               Jkvr. Johanna Wilhelmina Schimmelpenninck, daughter of Jhr. 
               Mr. Frederik Johan Constantijn Schimmelpenninck and Johanna 
               Wilhelmina Hodshon 
               Born 9 February 1863 Amsterdam 
               Died 3 June 1922 Arnhem 
               Married (2) 18 October 1923 Gorssel 
               Jkvr. Judith Calkoen, daughter of Abraham, Baron Calkoen 
               and Jkvr. Johanna Maria Judith van Doorn 
               Born 17 January 1874 's-Gravenhage 
               Died 11 December 1941 Hilversum 
                         Children, Generation X-5 

            2  Baron Werner Henri van Tuyll van Serooskerken 
               Born 2 March 1863 Arnhem 
               Died 29 March 1938 Ermelo 

            3  Baron Maurits Jacob Everard van Tuyll van Serooskerken 
               Born 27 October 1869 Arnhem 
               Died 14 March 1942 Velp, Gld. 
               Married 17 May 1929 's-Gravenhage 
               Hermine Albrecht, daughter of Antony Albrecht and 
               Geertruida Johanna Bruins 
               Born 19 April 1877 Zwolle 
               Died 29 September 1947 Enschede 
                         S.P. 

       IX-5 (VIII-7-1) 
            1  Baron Hendrik Willem Jacob van Tuyll van Serooskerken 
               Born 9 December 1838 Amsterdam 
               Died 2 September 1916 Heeze, Castle Heeze 
               Married 11 June 1868 Arnhem 
               Countess Cecilia Johanna van Limburg-Stirum, daughter of 
               Count Louis Gaspard Adrien van Limburg-Stirum and Cecilia 
               Johanna van Scheltinga 
               Born 8 December 1839 Oudwoude, H.Vaartzicht 
               Died 20 July 1930 Heeze, Castle Heeze 
                         Children, Generation X-6 

            2  Barones Margaretha Clara van Tuyll van Serooskerken 
               Born 12 February 1842 Amsterdam 
               Died 19 April 1903 Arnhem 
               Married 15 June 1865 Amsterdam 
               Baron Jan van Pallandt, son of Baron Joan Jacob Adolph 
               Alexander van Pallandt, Heer van Westervoort and Barones 
               Adolphine Wilhelmine van Pallandt 
               Born 24 September 1834 Arnhem 
               Died 24 January 1875 Amsterdam 
                         S.P. 

            3  Barones Wilhelmina Frederica van Tuyll van Serooskerken 
               Born 25 October 1845 Amsterdam 
               Died 11 January 1905 Arnhem, H.den Brink 
               Married 30 June 1864 Amsterdam 
               Baron Jacob Adolph van Pallandt, Heer van Walfort, son of 
               Baron Joan Jacob Adolph Alexander van Pallandt, Heer van 
               Westervoort and Barones Adolphine Wilhelmine van Pallandt 
               Born 2 February 1840 Arnhem 
               Died 20 July 1899 Arnhem 

       IX-6 (VIII-7-4) 
            1  Barones Wilhelmina Frederica van Tuyll van Serooskerken 
               Born 18 July 1842 Amersfoort 
               Died 22 September 1883 Hillegom 

            2  Barones Henriette Christine van Tuyll van Serooskerken 
               Born 7 March 1844 Amersfoort 
               Died 9 December 1927 Bilthoven 

            3  Barones Johanna Adriana van Tuyll van Serooskerken 
               Born 10 October 1845 Amersfoort 
               Died 14 August 1929 Deventer 
               Married 4 December 1883 's-Gravenhage 
               Guillaume Antoine Frederic van Hoorn, son of Mr. Paul 
               Theodore van Hoorn and Brigitta Amarantha d'Engelbronner 
               Born 16 July 1853 Voorschoten, H.Adegeest 
               Died 25 March 1915 Amersfoort 

            4  Barones Agnes Wilhelmina Jacoba van Tuyll van Serooskerken 
               Born 29 January 1847 Amersfoort 
               Died 21 June 1895 Haarlem 

            5  Baron Ernest Frederik van Tuyll van Serooskerken 
               Born 15 March 1850 Amersfoort 
               Died 27 September 1916 's-Gravenhage 
               Married (1) 4 April 1878 's-Gravenhage 
               Adelaide Rijke, daughter of David Bertrand Rijke and 
               Martine Helene de Vries 
               Born 8 February 1854 's-Gravenhage 
               Died 21 March 1909 's-Gravenhage 
               Married (2) 21 October 1911 Chateau Thieusis 
               Rolande Emilie Mathilde Waldor de Heusch, daughter of 
               Waldor Adrien Francois Adhemar, Baron de Heusch and 
               Mathilde Maria Umbgrove 
               Born 23 November 1875 Bruxelles 
               Died 19 September 1916 's-Gravenhage 
                         S.P. 

       IX-7 (VIII-7-5) 
            1  Barones Clasina Cornelia van Tuyll van Serooskerken 
               Born 22 April 1850 Deventer 
               Died 7 November 1898 's-Gravenhage 

            2  Barones Sigismunde Jeanne van Tuyll van Serooskerken 
               Born 9 January 1852 Deventer 
               Died 9 June 1920 's-Gravenhage 

            3  Baron Mr. Hendrik Nicolaas van Tuyll van Serooskerken 
               Born 19 October 1854 Deventer 
               Died 16 October 1924 Huize Geldrop 
               Married 24 May 1881 's-Gravenhage 
               Arnoudina Hoevenaar, Vrouwe van Geldrop, daughter of 
               Hubertus Paulus Hoevenaar van Geldrop and Jkvr. Anna Maria 
               Holmberg de Beckfelt 
               Born 20 August 1855 Oedjoengroesi, Tegal 
               Died 10 April 1933 Geldrop, Castle Geldrop 
                         Children, Generation X-7 

       IX-8 (VIII-7-6) 
            1  Barones Louise Johanna Josina van Tuyll van Serooskerken 
               Born 20 October 1856 Leeuwarden 
               Died 25 October 1946 Doorn 

            2  Barones Henriette Jacqueline van Tuyll van Serooskerken 
               Born 13 October 1857 Leeuwarden 
               Died 23 May 1943 Velp 

            3  Barones Charlotte Henriette van Tuyll van Serooskerken 
               Born 12 April 1860 's-Gravenhage 
               Died 1 February 1934 's-Gravenhage 

        X-1 (IX-2-1) 
            1  Baron Vincent Leopold van Tuyll van Serooskerken 
               Born 23 January 1882 Wassenaar, H.Oosterbeek 
               Died 23 January 1940 Upper-Slaughter, England 
               Married 31 January 1920 Hoogland 
               Annie Frances Isabella Hoare, daughter of Oliver Hoare and 
               Catherine Ann James 
               Born 1 October 1866 Woolston nr Southampton 
               Died 9 November 1943 London 
                         S.P. 

            2  Baroness Julia Marie van Tuyll van Serooskerken 
               Born 8 January 1883 's-Gravenhage 
               Died 14 July 1952 Normanbypark, Yorkshire 
               Married 18 July 1904 's-Gravenhage 
               Sir Berkeley Digby George Sheffield, of Normanby Park, 6th 
               Baronet, son of Sir Robert Sheffield, of Normanby Park, 5th 
               Baronet and Priscilla Isabel Laura Dumaresq 
               Born 18 January 1876 Normanbypark 
               Died 26 November 1946 London 

            3  Baron Henri Charles van Tuyll van Serooskerken 
               Heer van Coelhorst 
               Born 13 February 1884 Wassenaar, H.Oosterbeek 
               Died 31 July 1950 's-Gravenhage 
               Married 14 March 1912 's-Gravenhage 
               Barones Marcelle Wilhelmine de Smeth, daughter of Baron 
               Paul Arnold Jacques de Smeth, Heer van Alphen and Barones 
               Marie Isabelle du Tour van Bellinchave 
               Born 1 July 1889 Berlin 
               Died 11 August 1960 's-Gravenhage 
                         Children, Generation XI-1 

            4  Barones Leopoldine van Tuyll van Serooskerken 
               Born 16 October 1885 's-Gravenhage 
               Died 1 March 1977 Tetbury, Gloucestershire 
               Married 14 March 1910 Geneve 
               Arthur Shippen Willes, son of Henry Charles Willes and 
               Edith Alston 
               Born 19 October 1873 Ballyshannon, Ireland 
               Died 23 November 1937 Upper Slaughter, Gloucestersh. 

        X-2 (IX-2-7) 
            1  Baron Francois Charles Owen van Tuyll van Serooskerken 
               Born 21 May 1885 London 

            2  Baron Maurice Arthur van Tuyll van Serooskerken 
               Born 1 November 1888 London 
               Died 13 May 1916 Yperen (in battle) 

        X-3 (IX-3-6) 
            1  Baron Gerald Ernest van Tuyll van Serooskerken 
               Heer van Vleuten 
               Born 24 July 1872 Velsen, H.Velserbeek 
               Died 3 June 1944 Waardenburg, Castle Neerijnen 
               Married 5 March 1903 's-Gravenhage 
               Barones Eliza Dorothea van Pallandt, daughter of Baron 
               Adolf Jacob Carel van Pallandt, Heer van Neerijnen and 
               Jkvr. Eliza Dorothea Boreel 
               Born 6 January 1878 's-Gravenhage 
               Died 8 November 1972 Driebergen 
                         Children, Generation XI-2 

            2  Baron Reginald Colclough van Tuyll van Serooskerken 
               Born 25 May 1873 Velsen, H.Velserbeek 
               Died 26 May 1873 Velsen, H.Velserbeek 

            3  Baron Frederic Willem van Tuyll van Serooskerken 
               Born 5 August 1874 Santpoort, H.Thorn 
               Died 1 April 1950 's-Gravenhage 
               Married 27 November 1902 Velsen 
               Jkvr. Cornelie Marie Boreel, daughter of Jhr. Mr. Jacob 
               Willem Gustaaf Boreel, Heer van Hogelanden, 10th Baronet and 
               Barones Maria Cornelia Schimmelpenninck van der Oye 
               Born 4 April 1879 Velsen, H.Meervliet 
               Died 10 April 1957 's-Gravenhage 
                         Children, Generation XI-3 

        X-4 (IX-3-7) 
            1  Baron Ernst Louis Leopold van Tuyll van Serooskerken 
               Born 19 August 1875 Velsen, H.Velserbeek 
               Died 26 November 1959 Wassenaar 
               Married (1) 16 October 1902 's-Gravenhage (Div.1916) 
               Henriette Elisabeth Jochems, daughter of Mr. Joachim 
               Jochems and Catherine Marie Christine Brouwer 
               Born 24 July 1882 Bruxelles 
               Died 20 September 1968 Wassenaar 
               Married (2) 28 December 1922 Mersch, Luxembourg 
               Jkvr. Marie Renee van de Poll, daughter of Jhr. Charles 
               Fredrik van de Poll and Eugenie Previnaire 
               Born 1 March 1883 Haarlem 
               Died 8 October 1929 Callantsoog 
                         Children, Generation XI-4   

            2  Baron Willem van Tuyll van Serooskerken 
               Born 28 July 1877 Velsen, H.Velserbeek 
               Died 10 September 1961 Nijkerk, H.Balkenschoten 

            3  Barones Marie Wilhelmine van Tuyll van Serooskerken 
               Born 28 October 1879 Velsen, H.Velserbeek 
               Died 14 January 1959 Amersfoort 

            4  Barones Civile Elisabeth van Tuyll van Serooskerken 
               Born 25 July 1881 Velsen, H.Velserbeek 
               Died 28 January 1882 Velsen, H.Velserbeek 

        X-5 (IX-4-1) 
        (1) 1  Baron Ir. Frederik Christiaan van Tuyll van Serooskerken 
               Heer van Zuylen, Sweserengh, Westbroek, 
               Born 15 July 1886 Renkum, H.Keyenberg 
               Died 3 July 1958 Maarssen 
               Married 19 July 1910 Utrecht 
               Barones Lucile Agnes van Lynden, daughter of Baron Mr. 
               Alexander Frederik van Lynden and Jkvr. Constantia Maria 
               van Weede 
               Born 13 December 1889 's-Gravenhage 
               Died 12 June 1978 Maarssen 
                         Children, Generation XI-5 

        X-6 (IX-5-1) 
            1  Baron Mr. Cornelis Jan van Tuyll van Serooskerken 
               Born 9 May 1869 Arnhem 
               Died 11 January 1945 Zeist 
               Married (1) 25 March 1897 's-Gravenhage 
               Jkvr. Wilhelmina Pieternella van Eys, daughter of Jhr. 
               Theodoor Hendrik van Eys and Jkvr. Pieternella Jacoba van 
               Karnebeek
               Born 30 August 1872 Amsterdam 
               Died 20 February 1908 Arnhem, H.den Enk 
               Married (2) 3 May 1910 Arnhem 
               Barones Geertruida Maria van Lynden, daughter of Baron Mr. 
               Dirk Rijnhard Bernhard van Lijnden, Heer van de Cannenborch 
               and Jkvr. Wendela Catharina Maria Boreel 
               Born 15 October 1884 Arnhem 
               Died 29 April 1982 Zeist 
                         Children, Generation XI-6 

            2  Barones Louise Gasparine Adrienne van Tuyll van Serooskerken 
               Born 18 July 1870 Arnhem 
               Died 22 May 1871 Arnhem 

            3  Barones Albertine Marie van Tuyll van Serooskerken 
               Born 30 October 1872 Arnhem 
               Died 25 December 1911 Arnhem 
               Married 5 January 1899 Arnhem 
               Count Louis Gaspard Adrien van Limburg-Stirum, son of Count 
               Mr. Samuel John van Limburg-Stirum and Marie Henriette 
               Willink 
               Born 9 January 1865 Arnhem, H.Lichtenbeek 
               Died 23 September 1940 Arnhem 

            4  Baron Samuel John van Tuyll van Serooskerken 
               Heer van Heeze, Leende en Zesgehuchten 
               Born 6 January 1874 Arnhem 
               Died 20 February 1955 Heeze, Castle Heeze 

        X-7 (IX-7-3) 
            1  Baron Hendrik Nicolaas van Tuyll van Serooskerken 
               Born 26 July 1882 's-Gravenhage 
               Died 14 March 1949 Torquay 
               Married (1) 28 February 1914 London 
               Kate Hensman 
               Married (2) 1 February 1930 London 
               Beatrice Maude Hordern 
                         S.P. 

            2  Baron Hubertus Paulus van Tuyll van Serooskerken 
               Born 26 September 1883 's-Gravenhage 
               Died 16 August 1958 's-Gravenhage 
               Married (1) 17 November 1910 Leiden (Div.1920) 
               Johanna Clasina Jelgersma, daughter of Dr. Gerbrandus 
               Jelgersma and Elisabertha Ris 
               Born 25 June 1892 Bloemendaal 
               Died 13 September 1969 Utrecht 
               Married (2) 2 February 1922 Rotterdam 
               Hendrika Willebeek Le Mair, daughter of Jacob Willebeek Le 
               Mair and Christina van IJsselstein 
               Born 23 April 1889 Rotterdam 
               Died 15 March 1966 's-Gravenhage 
                         S.P. 

            3  Baron Jan Maximiliaan van Tuyll van Serooskerken 
               Heer van Geldrop 
               Born 29 May 1886 Voorburg 
               Died 14 April 1938 Amsterdam 
              Married 25 January 1911 Voorburg 
               Jkvr. Carolina Frederika Henriette Quarles van Ufford, 
               daughter of Jhr. Louis Pierre Quarles van Ufford and Maria 
               van Herwaarden 
               Born 21 March 1887 Loosduinen 
               Died 17 November 1972 Geldrop 
                         Children, Generation XI-7

            4  Baron Mr. Arnaud Marie van Tuyll van Serooskerken 
               Born 1 January 1889 Voorburg 
               Died 25 August 1961 Haarlem 
               Married (1) 22 December 1910 Voorburg Div.1935 
               Elisabeth Marina van Zanten Jut, daughter of Cornelis 
               Johannes van Zanten Jut and Susanna Pet 
               Born 22 November 1889 's-Gravenhage 
               Died 19 January 1958 's-Gravenhage 
               Married (2) 26 November 1935 Amersfoort 
               Guda du Rieu, daughter of Gerrit Daniel du Rieu and Guurtje 
               Timmerman 
               Born 30 April 1890 Katwijk 
               Died 3 April 1964 Alkmaar 
                         Children, Generation XI-8 

       XI-1 (X-1-3) 
            1  Barones Eleonora Mathilda Maria van Tuyll van Serooskerken 
               Born 12 January 1913 's-Gravenhage 
               Married 22 July 1935 Hoogland 
               Mr. Jan Willem Max des Tombe, son of Frederik Willem des 
               Tombe and Jkvr. Charlotte Frederique Teding van Berkhout, 
               Vrouwe van Hoenlo 
               Born 5 October 1904 Olst, H.Hoenlo 
               Died 21 June 1958 Olst 

            2  Barones Pauline Henriette van Tuyll van Serooskerken 
               Born 19 February 1914 Hoogland, Castle Coelhorst 
               Died 12 May 1974 Leiden 
               Married 17 September 1942 's-Gravenhage 
               Mr. Dr. Johann Gerhard van Maasdijk, son of Mr. Henri 
               Robbert van Maasdijk and Henriette Catharina Rueb 
               Born 15 December 1906 Breda 

            3  Barones Vincentia Regina van Tuyll van Serooskerken 
               Born 25 January 1916 Hoogland, Castle Coelhorst 
               Died 30 May 1957 's-Gravenhage 
               Married 18 March 1937 's-Gravenhage 
               Jhr. Mr. Matthias Adriaan Beelaerts van Blokland, son of 
               Jhr. Mr. Frans Beelaerts van Blokland, Heer van Blokland 
               and Jkvr. Maria Adriana Snoeck 
               Born 3 August 1910 Pei-tai-ho, China 

            4  Barones Fernande Marcelle van Tuyll van Serooskerken 
               Born 1 June 1918 Hoogland, Castle Coelhorst 
               Married 19 August 1946 's-Gravenhage 
               Nigel Ernest Westby Baker, son of Arthur Ernest Baker and 
               Catherine Brunetta Julia Westby 
               Born 9 January 1914 London 
               Died 10 March 1968 

       XI-2 (X-3-1) 
            1  Baron Mr. Maximiliaan van Tuyll van Serooskerken 
               Heer van Vleuten 
               Born 16 April 1904 's-Gravenhage 
               Died 5 February 1953 Wassenaar 
               Married 7 May 1932 Zeist 
               Jkvr. Agnes Renee Pauw van Wieldrecht, daughter of Jhr. 
               Henry Pauw van Wieldrecht, Heer van Heesbeen and Johanna 
               Elisabeth Boissevain 
               Born 7 March 1905 Driebergen, H.de Wildbaan 
                         Children, Generation XII-1

            2  Barones Eliza Dorothea van Tuyll van Serooskerken 
               Born 7 April 1906 's-Gravenhage 
               Died 21 October 1976 Arnhem 
               Married 7 March 1931 Zeist (Div.25-10-1934) 
               Jhr. Mr. Hendrik Frederik van Vredenburch, son of Jhr. Dr. 
               Carel Gerard Willem Frederik van Vredenburch and Luisa 
               Capece Minutolo dei Duchi di San Valentino e Marchesi di 
               Bugnano 
               Born 31 October 1905 Wien, Austria 
               Died 17 November 1981 Lausanne, Switzerland 

            3  Barones Alice Adolphine van Tuyll van Serooskerken 
               Born 19 August 1910 's-Gravenhage 
               Married 30 January 1932 Zeist (Div.1941) 
               Mr. Constant Alexander Hope Loudon, son of Willem 
               Constantijn Loudon and Jkvr. Jeanne Lucie van der Wyck 
               Born 26 March 1907 Batavia 

       XI-3 (X-3-3) 
            1  Barones Marie Cornelie van Tuyll van Serooskerken 
               Born 5 October 1903 Aerdenhout 
               Married 15 December 1931 Velsen 
               Jhr. Mr. John Hugo Loudon, son of Jhr. Ir. Hugo Loudon and 
               Anna Petronella Alida van Marken 
               Born 27 June 1905 's-Gravenhage 

            2  Barones Alicia Thecla Ann van Tuyll van Serooskerken 
               Born 28 February 1905 Aerdenhout, Villa Edison 
               Died 1 April 1943 Bandoeng, Jap.Intern.Camp 
               Married 5 October 1934 Bloemendaal 
               Jhr. Frans Alewijn, son of Jhr. Marie Constant Alewijn and 
               Catharina van Cleef 
               Born 23 August 1899 Delft 
                         S.P. 

            3  Baron Jacob Willem Gustaaf van Tuyll van Serooskerken 
               Born 4 August 1906 Velsen, H.Waterland 
               Died 26 March 1944 Tjimahi 

            4  Baron Frederik Christiaan Hendrik van Tuyll van Serooskerken 
               Born 5 April 1915 Haarlem 
               Died 27 January 1977 Velsen, H.Waterland 
               Married 31 March 1948 Noordwijk-Binnen 
               Countess Mathilde Elisabeth van Limburg-Stirum, daughter of 
               Count Leopold van Limburg-Stirum, Heer van Noordwijk en 
               Offem and Johanna Ida Randebrock 
               Born 16 January 1920 's-Gravenhage 
                         S.P. 

       XI-4 (X-4-1) 
        (1) 1  Baron Frederik Willem Walter van Tuyll van Serooskerken 
               Born 3 January 1911 Wassenaar, H.Reigersbergen 
               Died 8 June 1985 Wassenaar 
               Married (1) 16 January 1936 's-Gravenhage (Div.1951) 
               Jkvr. Marie Henriette Sophie van Tets, Vrouwe van 
               Heerjansdam, daughter of Jhr. Mr. George Catharinus Willem 
               van Tets, Heer van Oud- en Nieuw-Goudriaan and Jkvr. 
               Paulina Johanna Gevers 
               Born 7 April 1914 's-Gravenhage 
               Married (2) 14 October 1976 's-Gravenhage 
               Jkvr. Marie Henriette Sophie van Tets, Vrouwe van 
               Heerjansdam, daughter of Jhr. Mr. George Catharinus Willem 
               van Tets, Heer van Oud- en Nieuw-Goudriaan and Jkvr. 
               Paulina Johanna Gevers 
               Born 7 April 1914 's-Gravenhage 
                         Children, Generation XII-2 

       XI-5 (X-5-1) 
            1  Baron Mr. Frederik Leopold van Tuyll van Serooskerken 
               Heer van Serooskerken en Westbroek 
               Born 15 July 1911 Westbroek, H. 't Zek 
               Married 22 October 1935 Ginneken  
               Jkvr. Henriette Antonia Elisabeth Prisse, daughter of 
               Edouard Henri, Baron Prisse and Barones Antonia Elisabeth 
               van Lynden 
               Born 5 October 1910 Ukkel, Bruxelles 
                         Children, Generation XII-3 

            2  Baron Alexander van Tuyll van Serooskerken 
               Born 6 November 1912 Westbroek, H. 't Zek 
               Died 28 February 1942 'De Ruyter' Javasea in battle 
               Married 2 August 1938 Duesseldorf-Kaiserswerth 
               Countess Angelika von Luettichau, daughter of Count 
               Siegfried von Luettichau and Princess Barbara Reuss 
               Born 15 July 1914 Constantinopel 
                         Children, Generation XII-4 

            3  Baron Willem Rene Albert van Tuyll van Serooskerken 
               Born 28 September 1914 Castle Zuilen 
               Married 2 March 1939 Maarn 
               Jkvr. Cornelie Marie de Beaufort, daughter of Jhr. Willem 
               Hendrik de Beaufort and Ada Wilhelmina van Eeghen 
               Born 7 October 1916 Maarn 
                         Children, Generation XII-5 

            4  Baron Hans van Tuyll van Serooskerken 
               Born 20 May 1917 Zuilen, H.Zuylenveld 
               Married (1) 4 February 1941 Hengelo, Ov. 
               Alide Agnes Beets, daughter of Cornelis Beets and Marie 
               Luise Schroeter                              
               Born 25 June 1918 Hengelo, Ov. 
               Died 5 May 1971 Utrecht 
               Married (2) 2 December 1972 Rotterdam 
               Marie Louise Kars, daughter of Mr. Jaap Kars and Cornelia 
               Sijthoff 
               Born 19 June 1939 Rotterdam 
                         Children, Generation XII-6 

            5  Baron Mr. Everard Constantijn van Tuyll van Serooskerken 
               Born 23 May 1919 Zuilen, H.Zuylenveld 
               Married (1) 27 May 1948 Nijmegen (Div.6-12-1976) 
               Hendrica Maria van den Heuvel, daughter of Hermanus 
               Hendricus van den Heuvel and Gertruda Rat 
               Born 13 April 1920 Cuyk 
               Married (2) 4 January 1977 's-Gravenhage 
               Marjolein Huijskes, daughter of Dr. Jan Arie Huijskes and 
               Johanna Jansen 
               Born 27 March 1947 's-Gravenhage 
                         Children, Generation XII-7 

            6  Barones Johanna Wilhelmina van Tuyll van Serooskerken 
               Born 27 March 1923 Zuilen, Castle Zuylen 
               Married (1) 7 March 1953 Zuilen Div.25-5-1983 
               Ds. Hermanus van Beek, son of Harmannus van Beek and Helena 
               Hendrika van Bergen 
               Born 13 January 1922 Rotterdam 
               Married (2) 30 July 1984 Wassenaar 
               Prof. Dr. Jacobus Leonardus Maria Elders, son of Jan Elders 
               and Johanna Josepha Borst 
               Born 5 April 1925 Enkhuizen 

            7  Barones Henriette van Tuyll van Serooskerken 
               Born 4 May 1926 Zuilen, Castle Zuylen 
               Married 30 July 1954 Maarssen 
               Charles Francois de Roo van Alderwerelt, son of Charles 
               Francois de Roo van Alderwerelt and Margaretha Sophia 
               Diemont 
               Born 20 September 1901 Bloemendaal 
               Died 29 January 1959 Utrecht 

       XI-6 (X-6-1) 
        (1) 1  Barones Cecilia Johanna van Tuyll van Serooskerken 
               Born 26 December 1897 Arnhem, H.den Enk 
               Died 19 January 1987 Overveen 

            2  Barones Emilie Henriette Adele van Tuyll van Serooskerken 
               Born 15 March 1899 Arnhem, H.den Enk 
               Died 30 October 1970 Overveen 
               Married 3 June 1930 Paroengkoeda 
               Jhr. Hugo Boreel, son of Jhr. Gerard Salomon Boreel and 
               Jkvr. Sophie Geertruida Francoise Gevers 
               Born 5 December 1884 Wijk aan Duin, H.Westerhout 
               Died 26 February 1962 Wijk aan Duin, H.Westerhout 

            3  Baron Hendrik Willem Jacob van Tuyll van Serooskerken 
               Born 6 September 1900 Arnhem, H.den Enk 
               Died 9 September 1979 Renkum 
               Married 31 May 1941 Charlottesville, Virginia 
               Margaret Louise Kelsey, daughter of Stephen Tomlinson 
               Kelsey and Anne Louise Silver 
               Born 6 March 1918 East Orange, New Jersey 
               Died 16 August 1977 Delray Beach, Florida 
                         S.P. 

            4  Barones Albertine Marie van Tuyll van Serooskerken 
               Born 7 July 1902 Arnhem, H.den Enk 
               Died 12 April 1989 Arnhem 
               Married 2 February 1938 Zeist 
               Jhr. Dr. Jacob Nicolaas van der Does, son of Jhr. Mr. Johan 
               Adriaan van der Does and Martina Aletta Gooszen 
               Born 21 May 1901 Zutphen 
               Died 22 May 1985 Arnhem 

            5  Barones Wilhelmina Jacoba van Tuyll van Serooskerken 
               Born 28 November 1903 Arnhem, H.den Enk 
               Died 18 January 1982 Doorn 
               Married 11 June 1929 Zeist 
               Jhr. Ir. Christiaan van Holthe, son of Jhr. Edzard Willem 
               van Holthe and Jeannette Maria Leonora Noordendorp 
               Born 19 December 1903 's-Gravenhage 
               Died 17 April 1945 Ravensbruck Concentr. Camp 

            6  Baron Mr. Samuel John van Tuyll van Serooskerken 
               Born 16 November 1905 Arnhem, H.den Enk
               Married 5 September 1933 Breda 
               Barones Lily Margaretha Creutz, daughter of Baron Eduard 
               Alexander Ferdinand Creutz and Barones Adriana Hermina van 
               Nagell 
               Born 20 May 1910 Ede 
                         Children, Generation XII-8 

            7  Barones Cornelia Jeanne van Tuyll van Serooskerken 
               Born 22 May 1907 Arnhem, H.den Enk 
               Died 6 February 1981 Driebergen 
               Married 6 June 1930 Zeist 
               Mr. Willem Ferdinand Jacob van Notten, son of Marinus van 
               Notten and Barones Catharina van Lynden 
               Born 7 May 1904 Vogelenzang 
               Died 18 October 1981 Amersfoort 

        (2) 8  Barones Wendela Catharina Maria van Tuyll van Serooskerken 
               Born 9 June 1911 Arnhem, H.den Enk 

            9  Barones Nona Cecilia Hendrika van Tuyll van Serooskerken 
               Born 2 August 1914 Arnhem, H.den Enk 
               Married 30 August 1938 Zeist 
               Jhr. Mr. Pieter Jan Willem de Brauw, son of Jhr. Mr. Albert 
               Karel Cornelis de Brauw and Jkvr. Marie Teding van Berkhout 
               Born 30 November 1912 's-Gravenhage 

            10 Barones Rijnhardina Wendela van Tuyll van Serooskerken 
               Born 5 January 1917 Arnhem, H.den Enk 
               Married 10 October 1939 Zeist Div.19-8-1982 
               Jhr. Mr. Johan Cornelis Schorer, son of Jhr. Mr. Karel 
               Johan Schorer and Jkvr. Johanna Henriette Reinoudina van 
               Eysinga 
               Born 11 November 1911 Utrecht 

            11 Barones Geertruida Maria van Tuyll van Serooskerken 
               Born 19 December 1919 Arnhem, H.den Enk 
               Married 28 August 1947 Zeist 
               Gijsbert Karel Constant van Tienhoven, son of Mr. Dr. 
               Joannes Pieter van Tienhoven and Barones Lucile Agnes 
               Helene van Lynden 
               Born 27 May 1917 Amsterdam 
               Died 26 January 1978 Amsterdam 

       XI-7 (X-7-3) 
            1  Baron Mr. Hendrik Nicolaas van Tuyll van Serooskerken 
               Heer van Heeze, Leende en Zesgehuchten 
               Born 22 November 1916 Geldrop 
               Married 1 October 1946 Bruxelles, St.Joost ten Noode 
               Micheline Halewyck de Heusch, daughter of Michel Eugene 
               Emmanuel Marie Joseph Halewyck and Jonkvrouw Emmy Caroline 
               Armande Waldor de Heusch 
               Born 11 May 1922 Bruxelles, St.Joost ten Noode 
                         Children, Generation XII-9    

            2  Baron Jan Maximiliaan van Tuyll van Serooskerken 
               Born 14 May 1918 Geldrop 
               Married 25 September 1945 Geldrop 
               Jkvr. Hillegonda de Savornin Lohman, daughter of Jhr. Johan 
               Pieter de Savornin Lohman and Henriette Johanna van Hasselt 
               Born 5 August 1920 's-Gravenhage 
                         Children, Generation XII-10 

            3  Baron Ds. Carel Frederik Hendrik van Tuyll van Serooskerken 
               Born 17 March 1924 Geldrop 
               Married 9 August 1956 Utrecht 
               Josephine Albertha van Schothorst, daughter of Ds. Henricus 
               van Schothorst and Elisabeth Maria Louise Kaplan 
               Born 8 March 1933 Heemstede 
                         Children, Generation XII-11 

       XI-8 (X-7-4) 
        (1) 1  Barones Arnaudina Sorga van Tuyll van Serooskerken 
               Born 9 March 1913 Amsterdam 

            2  Baron Dr. Hendrik Otto Raimond van Tuyll van Serooskerken 
               Born 3 July 1915 Hilversum 
               Married 3 September 1942 Breukelen 
               Jkvr. Lucile Alexandra Quarles van Ufford, daughter of Jhr. 
               Dr. Louis Henri Quarles van Ufford and Barones Everarda 
               Jacoba van Lynden 
               Born 27 May 1921 Utrecht 
                         Children, Generation XII-12