Ingibiorg von Sachsen1 
Child of Ingibiorg von Sachsen and Valdemar II ‘the Victorious’ Valdemarsson, King of Denmark
- [S11] Alison Weir, Britain’s Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 60. Hereinafter cited as Britain’s Royal Families.
- [S106] Royal Genealogies Website (ROYAL92.GED), online http://www.daml.org/2001/01/gedcom/royal92.ged. Hereinafter cited as Royal Genealogies Website.
Niels Valdemarsson, Duke of Halland
He gained the title of Duke of Halland.
Margaret of Bohemia 
She was a member of the House of Premysl.
Child of Margaret of Bohemia and Valdemar II ‘the Victorious’ Valdemarsson, King of Denmark
- Valdemar ‘the Younger’ Valdemarsson, King of Denmark+ b. 1209, d. 28 Nov 1231
Valdemar ‘the Younger’ Valdemarsson, King of Denmark1 
He succeeded as the King Valdemar of Denmark in 1215.1
Child of Valdemar ‘the Younger’ Valdemarsson, King of Denmark and Eleonore de Portugal
- Sophie Valdemarsdottir b. b 1231
- [S38] John Morby, Dynasties of the World: a chronological and genealogical handbook (Oxford, Oxfordshire, U.K.: Oxford University Press, 1989), page 149. Hereinafter cited as Dynasties of the World.
Berengaria de Portugal1 
Children of Berengaria de Portugal and Valdemar II ‘the Victorious’ Valdemarsson, King of Denmark
- Knut Valdemarsson b. 1211
- Erik IV ‘Ploughpenny’ Valdemarsson, King of Denmark+ b. 1216, d. 10 Aug 1250
- Sophia Valdemarsdottir+ b. 1217, d. 1247
- Abel Valdemarsson, King of Denmark+ b. 1218, d. 29 Jun 1252
- Christopher I Valdemarsson, King of Denmark+ b. c 1219, d. 29 May 1259
Erik IV ‘Ploughpenny’ Valdemarsson, King of Denmark1 
He held the office of Co-regent of Denmark between 1232 and 1241.1 He succeeded as the King Erik IV of Denmark in 1241.2
Children of Erik IV ‘Ploughpenny’ Valdemarsson, King of Denmark and Jutta von Sachsen
- [S38] John Morby, Dynasties of the World: a chronological and genealogical handbook (Oxford, Oxfordshire, U.K.: Oxford University Press, 1989), page 149. Hereinafter cited as Dynasties of the World.
- [S16] Jirí Louda and Michael MacLagan, Lines of Succession: Heraldry of the Royal Families of Europe, 2nd edition (London, U.K.: Little, Brown and Company, 1999), table 16. Hereinafter cited as Lines of Succession.
Abel Valdemarsson, King of Denmark1 
He succeeded as the King Abel of Denmark in 1250.2
Children of Abel Valdemarsson, King of Denmark and Matilda von Schauenberg
- Eric Abelsson, Herzog von Schleswig+ d. 1272
- Valdemar III Abelsson, Herzog von Schleswig d. 1257
- Sophie Abelsdottir+ b. c 1240, d. a 1284
- Abel Abelsson b. 1252, d. 1279
- [S38] John Morby, Dynasties of the World: a chronological and genealogical handbook (Oxford, Oxfordshire, U.K.: Oxford University Press, 1989), page 149. Hereinafter cited as Dynasties of the World.
- [S16] Jirí Louda and Michael MacLagan, Lines of Succession: Heraldry of the Royal Families of Europe, 2nd edition (London, U.K.: Little, Brown and Company, 1999), table 16. Hereinafter cited as Lines of Succession.
Christopher I Valdemarsson, King of Denmark1 
He succeeded as the King Christopher I of Denmark in 1252.2
Children of Christopher I Valdemarsson, King of Denmark and Margaret von Pommern
- Valdemar Christofsson
- Niels Christofsson
- Margaret Christofsdottir, Princess of Denmark+
- Erik V ‘Klipping’ Christofsson, King of Denmark+1 b. 1249, d. 22 Nov 1286
- Mathilde Christofsdottir, Princess of Denmark+ b. 1250, d. 1300
- [S38] John Morby, Dynasties of the World: a chronological and genealogical handbook (Oxford, Oxfordshire, U.K.: Oxford University Press, 1989), page 149. Hereinafter cited as Dynasties of the World.
- [S16] Jirí Louda and Michael MacLagan, Lines of Succession: Heraldry of the Royal Families of Europe, 2nd edition (London, U.K.: Little, Brown and Company, 1999), table 16. Hereinafter cited as Lines of Succession.
Sophia Valdemarsdottir 
Children of Sophia Valdemarsdottir and Johann I Markgraf von Brandenburg
- Heinrich I Markgraf von Brandenburg+ d. 1318
- Konrad I Markgraf von Brandenburg+ d. 1304
- Johann II Markgraf von Brandenburg+ d. 1281
- Otto IV Markgraf von Brandenburg d. bt 1308 – 1309
- Erich von Brandenburg d. 1295
- Albrecht von Brandenburg
- Hermann von Brandenburg d. b Sep 1291
- Mechtild von Brandenburg
- Agnes von Brandenburg+ d. 1304
- Helene von Brandenburg+ b. c 1241/42, d. 7 Jun 1304
- [S16] Jirí Louda and Michael MacLagan, Lines of Succession: Heraldry of the Royal Families of Europe, 2nd edition (London, U.K.: Little, Brown and Company, 1999), table 16. Hereinafter cited as Lines of Succession.
Knut Valdemarsson 
