Submitted by Leo van de Pas
corrections/additions are welcome
Descendants of Ulrich Erdtwein
Mayor in Augsburg
gen 19-21 of 21 generations
XIX-1 (XVIII-17-2)
1 Evert Johan Peter Wilbrenninck
Born 10 June 2025 's-Gravenhage
2 Maarten Alexander Wilbrenninck
Born 6 September 2025 Bruxelles
Married 25 September 2025 Hillegersberg Div.18-10-1939
Jkvr. Wilhelmina Delina Joanna de Villeneuve, daughter of
Jhr. Volkert Huibert de Villeneuve and Joanna Visser
Born 3 June 2026 Dordrecht
Died 2 November 2025 Heemstede
S.P.
XIX-2 (XVIII-19-1)
1 Henriette Dudok van Heel
Born 3 July 2025 Haarlem
2 Anne Marijke Dudok van Heel
Born 25 August 2025 Hilversum
3 Johan Herman Dudok van Heel
Born 11 August 2025 Rotterdam
XIX-3 (XVIII-21-1)
1 Jhr. Mr. Rudolph Everhard Willem van Weede
Heer van de beide Ampsen
Born 2 July 2025 's-Gravenhage
Married 17 October 2025 's-Gravenhage
Theodora Henriette van den Wall Bake, daughter of Mr.
Rudolph Alexander van den Wall Bake and Jkvr. Digna Snouck
Hurgronje
Born 13 August 2025 's-Gravenhage
Children, Generation XX-1
XIX-4 (XVIII-21-3)
1 Gravin Alice Mary van Lynden van Sandenburg
Born 10 August 2025 Castle Sandenburg, Langbroek
Died 9 April 2026 's-Gravenhage
Married 10 November 2025 Nederlangbroek Div.19-8-1975
Drs. Marten Jan Merens, son of Dirk Merens and Henriette
Jacoba Plattel
Born 3 April 2026 's-Gravenhage
Children, Generation XX-2
2 Alexander
Graaf van Lynden van Sandenburg
Born 18 August 2025 Castle Sandenburg, Langbroek
Married 20 August 2025 Nederlangbroek
Jkvr. Marie Louise de Muralt, daughter of Jhr. Adrien
Theodore de Muralt, Heer van Vlijmen and Robberta
Breitenstein
Born 3 May 2026 's-Gravenhage
Children, Generation XX-3
XIX-5 (XVIII-22-1)
(1) 1 Jacqueline van Troostenburg de Bruyn
Born 1 February 2026 Stockholm
Married 18 July 2025 's-Gravenhage
Prof. Jan Berend Westerdijk, son of Tidde Westerdijk and
Maria Wijbina Pijzel
Born 12 May 2026 Amsterdam
S.P.
2 Jan Jacob van Troostenburg de Bruyn
Born 22 April 2026 Windsor, Berkshire
XIX-6 (XVIII-22-3)
(1) 1 Baron Mr. Godfried Leonard Olaf van Boetzelaer
Born 1 May 2026 Arnhem
(2) 2 Barones Isabel Christiane Louise van Boetzelaer
Born 23 December 2025 Oosterbeek
XIX-7 (XVIII-24-1)
1 Jhr. Ing. Frederik Alexander Diederik Coenen
Born 22 May 2026 Rotterdam
Married (1) 22 July 2025 Heerlen Div.1-9-1966
Paula Johanna Wirtz
Married (2) 22 December 2025 Haarlem
Jeltje Christina van der Leij
S.P.
2 Jhr. Albert Hendrik Lodewijk Coenen
Born 28 August 2025 Rotterdam
Married 7 October 2025 Utrecht
Margriet Marie Henriette Leewens
Children, Generation XX-4
3 Jhr. Herman Coenen
Born 21 February 2026 Aerdenhout
Married 1 July 2025 Bloemendaal
Janet Betty Southwell
S.P.
4 Jkvr. Alida Johanna Louise Coenen
Born 10 December 2025 Haarlem
XIX-8 (XVIII-24-2)
(1) 1 Jhr. Reinier Frederik Boudewijn Coenen
Born 7 October 2025 Rijssen, H.de Oosterhoff
Married 6 September 2025 Hoogeveen
Jenny Troost, daughter of Jan Albertus Troost and Willempje
de Willigen
Born 29 January 2026 Ermelo
Children, Generation XX-5
2 Jkvr. Henriette Coenen
Born 31 October 2025 Rijssen
Married 27 September 2025 Zwijndrecht Div.27-11-1986
Arie Adrianus Stolk, son of Dirk Stolk and Johanna Harmanna
Nijenhuis
Born 9 October 2025 Zwijndrecht
S.P.
(2) 3 Jkvr. Itta Yolanda Coenen
Born 18 January 2026 Zutphen
4 Jkvr. Hella Margaretha Coenen
Born 11 April 2026 Zutphen
5 Jkvr. Mariëtta Christina Coenen
Born 18 December 2025 Zutphen
XIX-9 (XVIII-24-4)
1 Jhr. Arnoud Frederik Alexander Coenen
Born 7 February 2026 Bussum
XIX-10 (XVIII-25-1)
1 Anne Civile van Hoytema
Born 11 July 2025 Weesp
2 Douwe Namna Uninga van Hoytema
Born 22 June 2025 Weesp
3 Mary van Hoytema
Born 23 November 2025 Ermelo
Married 30 August 2025 Voorst
Jhr. Frans Gerard Beelaerts van Blokland, son of Jhr. Mr.
Gerard Beelaerts van Blokland, Heer van Blokland and Jkvr.
Margaretha Schorer
Born 15 April 2026 Ottawa, Ontario
Children, Generation XX-6
XIX-11 (XVIII-25-4)
1 Baron Peter Paul van der Borch tot Verwolde
Born 8 February 2026 Giekerk
Married November 1979 London, Ontario
Anna Christina Dymus, daughter of John Dymus and Maria
Schewczyk
Born 23 December 2025 London
Died circa 1982 Ontario
S.P.
2 Julia Frederika van der Borch tot Verwolde
Born 28 June 2025 Ottawa, Canada
Married 15 April 2026 IJsselstein Div.24-9-1981
Frits Albertus Maria van Beek, son of Bernardus Johannes
Wilhelmus van Beek and Catharina Moes
Born 22 December 2025 IJsselstein
S.P.
XIX-12 (XVIII-27-1)
1 Barones Daniella Sonja van Hoëvell
Born 22 July 2025 Dordrecht
Married 26 January 2026 Laren, N-Holland Div.4-7-1995
Mr. Hendrik Jan Abraham van Son, son of Wilbort van Son and
Anna Christophina van Dusseldorp
Born 25 January 2026 Leiden
S.P.
2 Baron Roelof Alexander van Hoëvell
Born 3 May 2026 Dordrecht
Married 13 December 2025 Delft
Laurine Martelinda van Dapperen, daughter of Jan van
Dapperen and Henriëtte Carolina Verniers van der Loeff
Born 25 January 2026 Singapore
Children, Generation XX-7
XIX-13 (XVIII-27-3)
1 Ada Nancy Thomassen à Thuessink
van der Hoop van Slochteren
Born 5 November 2025 Driewegen
2 Geertruid Suzanne Thomassen à Thuessink
van der Hoop van Slochteren
Born 27 May 2026 Driewegen
3 Elisabeth Maria Magdalena Thomassen à Thuessink
van der Hoop van Slochteren
Born 31 December 2025 Driewegen
4 Jan Nanning Matthijs Thomassen à Thuessink
van der Hoop van Slochteren
Born 23 November 2025 Driewegen
XIX-14 (XVIII-28-1)
1 Elize Charlotte van Santen
Born 19 June 2025 Haarlem
Married 16 June 2025 Bloemendaal
Jhr. Herman Hendrik Alexander Röell, son of Jhr. Frédéric
Francois Röell and Jkvr. Dorine Aleida Maria Ludovica van
der Goes
Born 11 April 2026 Medan, Dutch East Indies
Children, Generation XX-8
2 Peter Nicolaas Marius van Santen
Born 21 March 2026 Bloemendaal
XIX-15 (XVIII-28-2)
(1) 1 Baron Frans Julius Johan van Heemstra
Born 25 November 2025 Nieuweramstel
Died 26 November 2025 Nieuweramstel
XIX-16 (XVIII-28-3)
(1) 1 Anthonie Ewout van Dishoeck
Born 29 August 2025 Arnhem
2 Frederik Jan van Dishoeck
Born 11 May 2026 Bergen op Zoom
XIX-17 (XVIII-29-1)
1 Jan Theodoor Hugo Tonco Modderman
Born 13 May 2026 Velp
XIX-18 (XVIII-29-3)
1 Baron Jan Pieter Lodewijk van der Borch tot Verwolde
Born 23 December 2025 Brummen
Married 12 June 2025 Naarden
Carolina Jacobina Maria Blijdenstein, daughter of Willem
Theodoor Blijdenstein and Catharina Octavia Bellina Iordens
Born 1 April 2026 Rotterdam
Children, Generation XX-9
2 Barones Marie Pauline van der Borch tot Verwolde
Born 23 April 2026 Brummen
Married 1 May 2026 De Steeg
Baron Fecco Dominicus Pica Galenus van Sytzama, son of
Baron Johannes Galenus van Sytzama and Barones Theodora
Elisabeth van der Feltz
Born 25 November 2025 H.Schouwenburg, Oldebroek
Children, Generation XX-10
XIX-19 (XVIII-29-4)
1 Pauline Elisabeth Appleton
Born 29 September 2025 Guildford
Married 18 February 2026 Seate
Malcolm Charles Wakeley
S.P.
2 Malcolm Geoffrey Appleton
Born 17 February 2026 Guildford
3 Jane Eliane Appleton
Born 1 March 2026 Guildford
XIX-20 (XVIII-30-1)
(1) 1 Baron Frédéric Jean Paul van der Borch tot Verwolde
van Vorden
Born 31 May 2026 's-Gravenhage
Married 28 October 2025 Montreal
Linda Mary Claire Leroux, daughter of Austin Leroux and
Lucille Renaud
Born 28 July 2025 Montreal
Children, Generation XX-11
XIX-21 (XVIII-30-2)
1 Baron Marcel van der Borch tot Verwolde
van Vorden
Born 28 June 2025 Soekaboemi, Java
Married Miriam Carol Eastwood, daughter of Carl Marx
Eastwood and Miriam Mitchell
Born 6 August 2025 St.John, New Brunswick
Children, Generation XX-12
XIX-22 (XVIII-31-3)
1 Joanna Maria Tydeman
Born 29 October 2025 Westkapelle
Married 29 February 2026 Blaricum
Baron Floris van Boetzelaer, son of Baron Mr. Constant
Wilhelm van Boetzelaer, Heer van Asperen and Jkvr.
Marguérite Bosch van Drakestein
Born 4 January 2026 Washington
Children, Generation XX-13
XIX-23 (XVIII-31-4)
1 Baron Mr. Romeo van der Borch tot Verwolde
van Vorden
Born 13 May 2026 Utrecht
Married 21 August 2025 Nijmegen
Drs. Evelyn Christina Swemle, daughter of Hendrik Arie
Swemle and Wilhelmina Maria Christina van Keken
Born 7 September 2025 Leiden
Children, Generation XX-14
2 Barones Ghislaine Francoise van der Borch tot Verwolde
van Vorden
Born 8 September 2025 Utrecht
XIX-24 (XVIII-32-2)
1 Barones Muriel van der Borch tot Verwolde
van Vorden
Born 13 April 2026 Christchurch, New Zealand
Married 15 December 2025 Avonhead, New Zealand
Ian Robert Haines, son of Graham Thomas Haines and Maisy
Margret Dacombe
Born 25 May 2026 Christchurch
S.P.
2 Barones Wendelyn van der Borch tot Verwolde
van Vorden
Born 15 August 2025 Christchurch
Married 2 April 2026 Christchurch
Graeme George Ward, son of George Walter Ward and Eileen
Lovett
Born 24 February 2026 Ashburton
S.P.
XIX-25 (XVIII-33-1)
(1) 1 Jhr. Barthold Jacob de Geer
Born 1 June 2026 Brummen
Married 30 October 2025 Soest
Anna Mathilde Huber, daughter of Thomas Huber and Elisabeth
Henriette Clementine Schmitz
Born 30 March 2026 Palembang, Sumatra
Children, Generation XX-15
2 Jkvr. Henriette Elisabeth de Geer
Born 21 June 2025 Zutphen
Married 17 December 2025 Wassenaar Div.1980
Mr. Egbert Willem Justinus Hannema, son of Egbert Willem
Justinus Hannema and Jessie Carolyn Schofield
Born 4 September 2025 Los Angeles, California
S.P.
(2) 3 Domninique Storm van Leeuwen
Born 24 November 2025 's-Gravenhage
4 Renaud Storm van Leeuwen
Born 19 July 2025 Laren, N-Holland
XIX-26 (XVIII-34-1)
1 Baron Jan Cornelis van Tuyll van Serooskerken
Born 14 May 2026 Wassenaar
Married (1) 20 July 2025 's-Gravenhage Div.12-11-1979
Helen Paula van Lanschot, daughter of Godefridus Joannes
Arthur van Lanschot and Johanna Clasina Cramer
Born 13 April 2026 Hilversum
Married (2) 30 June 2025 's-Gravenhage
Sidonie Yvonne Wilhelmine Marie van Rijckevorsel, daughter
of Drs. Lambertus Antonius Augustinus Maria van
Rijckevorsel and Sophia Johanna Maria van Heijst
Born 31 August 2025 's-Gravenhage
Children, Generation XX-16
2 Barones Isabella Adriana Petronella van Tuyll van Serooskerk
Born 25 November 2025 Wassenaar
Married 5 September 2025 's-Gravenhage
Jhr. Mr. Adriaan Willem Gerrit van Riemsdijk, son of Jhr.
Mr. Barthold Willem Floris van Riemsdijk and Gravin Nancy
Leopoldine Marie van Limburg Stirum
Born 4 April 2026 Bentveld
Children, Generation XX-17
3 Baron Eduard John van Tuyll van Serooskerken
Born 5 March 2026 Wassenaar
Married 21 July 2025 's-Gravenhage Div.1984
Vincenza Apap, daughter of Carmel Apap and Carmela Fenech
Born 14 December 2025 Lija, Malta
Children, Generation XX-18
XIX-27 (XVIII-35-1)
1 Jkvr. Jeanne Madeleine Louise van Valkenburg
Born 12 January 2026 Amstelveen
Married 7 September 2025 Bloemendaal
Drs. Robert Nagtzaam, son of Nicolaas Cornelis Nagtzaam and
Johanna Maria Kelly
Born 3 October 2025 Amsterdam
S.P.
2 Jkvr. Clara Feyoena van Valkenburg
Born 6 February 2026 Amstelveen
Married 26 October 2025 Heemstede
Alphonsus Carolus Bernardus Schölvinck, son of Louis Willem
Bernard Schölvinck and Maria Immaculata Josepha Lucia van
Rijckevorsel
Born 26 October 2025 Boxmeer
S.P.
3 Jhr. Mr. Johan Fredrik Theodoor van Valkenburg
Born 8 June 2025 Amstelveen
Married (1) 10 May 2026 Moergestel Div.1983
Isabella Vincentia Theodora van Delft, daughter of
Theodorus Gillis Maria van Delft and Maria Vincentia Weyers
Born 19 January 2026 Moergestel
Married (2) 14 October 2025 Bloemendaal
Drs. Emma Geertruida Scholten, daughter of Wessel Herman
Scholten and Karolina Emma Elisabeth Bohlem
Born 13 November 2025 's-Gravenhage
Children, Generation XX-19
4 Jkvr. Anna Cuinira van Valkenburg
Born 26 January 2026 Nieuwer-Amstel
Married 14 March 2026 Haarlem
Drs. Wouter Jacob Kolff, son of Hendrik Franciscus Kolff
and Amelia Gerardina Hannema
Born 23 July 2025 Wassenaar
Children, Generation XX-20
XIX-28 (XVIII-35-2)
(1) 1 Jkvr. Agnes Carola Nahuys
Born 5 July 2025 Rotterdam
Married 15 October 2025 Wassenaar
Drs. Frederik Herman Olthof, son of Herman Olthof and
Wilhelmina Christina Marrigje de Boer
Born 2 October 2025 Hulst
S.P.
2 Jhr. Willem Hendrik Gerard Nahuys
Born 23 May 2026 Rotterdam
3 Jhr. Alexander Adriaan Nahuys
Born 20 January 2026 Rotterdam
XIX-29 (XVIII-35-3)
1 Drs. Nancy Elisabeth Kool
Born 7 July 2025 Utrecht
Married 1 July 2025 Oegstgeest
Jhr. Dr. Henk Eduard Witsen Elias, son of Jhr. Mr. Nicolaas
Witsen Elias and Mr. Annie Adeline Mathilde Tendeloo
Born 22 June 2025 's-Gravenhage
Children, Generation XX-21
XIX-30 (XVIII-36-1)
(1) 1 Jhr. Armand Rodrigue de Beaufort
Born 3 April 2026 's-Gravenhage
Died 28 June 2025 Utrecht
2 Jkvr. Monique de Beaufort
Born 30 August 2025 Wassenaar
Married 18 December 2025 Doorn
Mr. Ronald Pfeiffer, son of Gregorius Anton Pfeiffer and
Anna Otto
Born 29 March 2026 Rijswijk, Z-Holland
S.P.
XIX-31 (XVIII-36-2)
1 Ferdinand Willem Theodoor Pahud de Mortanges
Born 2 November 2025 Amsterdam
XIX-32 (XVIII-37-1)
1 Michiel Cornelis Lucas Vreedenburgh
Born 11 October 2025 Karachi, Pakistan
2 Helena Cecilia Justine Vreedenburgh
Born 6 March 2026 Bonn, Germany
3 Floris Jan Alexander Vreedenburgh
Born 15 February 2026 Dublin, Ireland
XIX-33 (XVIII-40-2)
(2) 1 Monika Pamela Malone
Born 23 February 2026 St.Louis, Missouri
Married 4 August 2025
John Anthony Christman, son of Charles Joseph Christman and
Elizabeth Adair
Born 14 December 2025
Children, Generation XX-22
XX-1 (XIX-3-1)
1 Jhr. Marc Alexander van Weede
Born 20 July 2025 's-Gravenhage
2 Jhr. Willem Theodoor van Weede
Born 30 March 2026 's-Gravenhage
Married Caroline van den Broek, daughter of Mr. Henri van
den Broek, Minister for Foreign Affairs and Drs. Josephine
Adriana Antoinette van Schendel
Children, Generation XXI-1
3 Jhr. Steven Marius van Weede
Born 12 July 2025 Utrecht
XX-2 (XIX-4-1)
1 Louise Henriëtte Sylvia Merens
Born 1967
XX-3 (XIX-4-2)
1 Graaf Frederik Charles van Lynden van Sandenburg
Born 28 August 2025 's-Gravenhage
Married 26 April 2026 De Bilt Div.7-5-1996
Jkvr. Johanna Martine Röell, daughter of Jhr. Mr. Eduard
Röell and Saskia de Lange
Born 7 December 2025 Bilthoven
S.P.
2 Gravin Madeleine Louise van Lynden van Sandenburg
Born 29 January 2026 's-Gravenhage
Married 17 August 2025 Langbroek
Drs. Joost Hendrik de Bie, son of Joost Hendrik de Bie and
Geertruida Troelstra
Born 30 August 2025 Doorn
S.P.
3 Gravin Wérine Laurence van Lynden van Sandenburg
Born 19 November 2025 's-Gravenhage
4 Gravin Alexine van Lynden van Sandenburg
Born 28 December 2025 's-Gravenhage
XX-4 (XIX-7-2)
1 Jhr. Maurits Henri Paul Frederik Coenen
Born 14 November 2025 Utrecht
2 Jkvr. Evaline Francisca Jeannette Coenen
Born 31 May 2026 Johannesburg
XX-5 (XIX-8-1)
1 Jhr. Paul Jan-Willem Frederik Coenen
Born 22 November 2025 Brummen
2 Jhr. Erik Boudewijn Coenen
Born 6 October 2025 Brummen
XX-6 (XIX-10-3)
1 Jhr. Gerard Alexander Beelaerts van Blokland
Born 14 November 2025 Warnsveld
2 Jhr. Reinier Emile Francois Beelaerts van Blokland
Born 18 July 2025 Saint Germain-en-Laye
XX-7 (XIX-12-2)
1 Barones Francisca Louise van Hoëvell
Born 7 May 2026 's-Gravenhage
Married 23 September 2025 Egmond
Johannes Petrus Veltkamp, son of Johannes Petrus Veltkamp
and Helen Maria Spruit
Born 20 September 2025 Alkmaar
S.P.
2 Baron Jan-Reinier van Hoëvell
Born 17 November 2025 Haren, Groningen
3 Barones Leonie Pauline van Hoëvell
Born 9 January 2026 Leiden
4 Barones Elvira Juliette van Hoëvell
Born 12 November 2025 Schoorl
XX-8 (XIX-14-1)
1 Jkvr. Sophie Elize Dorine Röell
Born 28 March 2026 Oldenzaal
2 Jhr. Joris Frederik Alexander Röell
Born 29 April 2026 Enschede
XX-9 (XIX-18-1)
1 Barones Isabella van der Borch tot Verwolde
Born 27 November 2025 Bussum
2 Baron Philip van der Borch tot Verwolde
Born 8 May 2026 Bussum
3 Barones Francoise van der Borch tot Verwolde
Born 12 July 2025 Bussum
XX-10 (XIX-18-2)
1 Barones Susanna Theodora Elisabeth van Sytzama
Born 8 October 2025 Naarden
2 Baron Pico Maurits Lodewijk van Sytzama
Born 25 June 2025 Naarden
XX-11 (XIX-20-1)
1 Baron Richard Frederic van der Borch tot Verwolde
van Vorden
Born 5 May 2026 Montreal
2 Barones Christina Lee van der Borch tot Verwolde
van Vorden
Born 27 January 2026 Montreal
XX-12 (XIX-21-1)
1 Barones Michele Dawn van der Borch tot Verwolde
van Vorden
Born 6 January 2026 Halifax, Nova Scotia
2 Barones Sondra Lynn van der Borch tot Verwolde
van Vorden
Born 21 May 2026 St.John, New Brunswick
XX-13 (XIX-22-1)
1 Baron Rutger Meinard van Boetzelaer
Born 4 December 2025 Amsterdam
2 Baron Marnix Pieter Paulus van Boetzelaer
Born 5 August 2025 Naarden
XX-14 (XIX-23-1)
1 Baron Allard Philip van der Borch tot Verwolde
van Vorden
Born 22 June 2025 Naarden
2 Barones Corinne Melanie van der Borch tot Verwolde
van Vorden
Born 4 January 2026 Wimbledon, Surrey
3 Baron Joris Wolter van der Borch tot Verwolde
van Vorden
Born 12 April 2026 Hilversum
XX-15 (XIX-25-1)
1 Jkvr. Elisabeth Ingrid Daniela de Geer
Born 9 November 2025 Soest
Married (1) 20 August 2025 Soest Div.1982
Kurt Hoyer, son of Bruno Hoyer and Agnes Henriette Tenbusz
Born 22 June 2025 Overbeck, Nordrh-Westfalen
Married (2) 25 June 2025 Wulfen, Nordr-Westfalen
Rudolf Wilhelm Rickert, son of Anton August Rickert and
Maria Katharina Hummelt
Born 5 December 2025 Wulfen
S.P.
2 Jkvr. Henriette Saskia Margaretha de Geer
Born 13 February 2026 Soest
Married 29 December 2025 Soest
Petrus Johannes Koning, son of Nicolaas Cornelis Koning and
Cornelia Geertruida Spaans
Born 18 September 2025 Hilversum
S.P.
3 Jhr. Louis de Geer
Born 13 June 2025 Soest
Married 21 September 2025 Baarn
Geertruida Panders, daughter of Johannes Petrus Leonardus
Panders and Geertruida Schiedon
Born 17 February 2026 Soest
S.P.
4 Jhr. Harry de Geer
Born 13 June 2025 Soest
Married 30 May 2026 Soest
Petra Hendrika de Blok, daughter of Petrus Alphonsus
Hendrikus de Blok and Aaltje Elisabeth de Man
Born 1 February 2026 Hilversum
Children, Generation XXI-2
XX-16 (XIX-26-1)
(1) 1 Barones Ina Margaretha Helen van Tuyll van Serooskerken
Born 4 November 2025 Velp, Gld.
2 Baron Cornelis John van Tuyll van Serooskerken
Born 13 June 2025 Naarden
(2) 3 Baron Constant Ferdinand Jan van Tuyll van Serooskerken
Born 22 February 2026 's-Gravenhage
4 Baron Lambert Leopold Gaspard van Tuyll van Serooskerken
Born 3 July 2025 's-Gravenhage
5 Baron Leopold Maximiliaan van Tuyll van Serooskerken
Born 13 August 2025 's-Gravenhage
XX-17 (XIX-26-2)
1 Jkvr. Lily Henriette van Riemsdijk
Born 22 June 2025 's-Gravenhage
2 Jhr. Barthold Willem Floris van Riemsdijk
Born 7 November 2025 's-Gravenhage
XX-18 (XIX-26-3)
1 Barones Claire Monique van Tuyll van Serooskerken
Born 17 February 2026 's-Gravenhage
XX-19 (XIX-27-3)
(1) 1 Jkvr. Marijne Cathelijne van Valkenburg
Born 18 April 2026 Moergestel
2 Jhr. Cornelis Constantijn van Valkenburg
Born 20 March 2026 Moergestel
XX-20 (XIX-27-4)
1 Amélie Geraldine Kolff
Born 13 March 2026 Rotterdam
2 Feyo Anthony Kolff
Born 16 January 2026 Rotterdam
3 Wendeline Justine Kolff
Born 26 July 2025 Rotterdam
4 Barbara Madeleine Kolff
Born 26 July 2025 Rotterdam
XX-21 (XIX-29-1)
1 Jhr. Nicolaas Philip Witsen Elias
Born 7 February 2026 Leiden
2 Jhr. Schelto Floris Witsen Elias
Born 30 September 2025 Amsterdam
3 Jkvr. Anne Fleur Madeline Witsen Elias
Born 11 October 2025 Abcoude
XX-22 (XIX-33-1)
1 Katharina Maria Christman
Born 14 May 2026 Mountain View, California
2 Sarah Frances Christman
Born 1 December 2025 Phoenix, Arizona
3 Julia Rose Christman
Born 1 June 2026 Phoenix, Arizona
XXI-1 (XX-1-2)
1 Jhr. Olivier van Weede
2 Jhr. Wouter Steven van Weede
Born 8 April 2026 Praha, Czechia
XXI-2 (XX-15-4)
1 Jkvr. Priscilla Jane de Geer
Born 1 December 2025 Soest
2 Jhr. Remaico Harry de Geer
Born 24 June 2025 Soest
Source Listing
--------------
~Stammtafeln zur Geschichte der
Europäischen Staaten, 4 volumes,
Marburg, 1953, 1975.
by W. K. Prinz von Isenburg
~Jan van Riebeeck zijn voor- en
nageslacht
Den Haag, 1952
~Nederland's Patriciaat
Den Haag
~Nederland's Adelsboek
Den Haag
Het geslacht van den Boetzelaer
Assen, 1969.
by J.W.des Tombe (1921)Baron van B.(1967)
~Jaarboek Centraal Bureau
voor Genealogie
~Kwartierstatenboek, 1983.
~Europäische Stammtafeln,
J.A. Stargardt Verlag
Marburg.
by Detlev Schwennicke, Editor
~Niet Altijd Somer
Geschiedenis van het geslacht Reynvaan
Assen, 1975.
by Mr.H.F.Reynvaan
~Kwartierstatenboek 1993
De Herdenking van het 110-jarig best.
K.N.G. v Geslacht en Wapenkunde.
Ancestors
by Brigitte Gastel Lloyd
~Kwartierstaten boek, 1958
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