Nielsen Hayden genealogy
Family: Alfonso IX, King of León and Galicia / Berenguela I of Castile, Queen Of Castile & Toledo (F3770)
m. Bef 17 Dec 1197-
Father | Male
Alfonso IX, King of León and Galicia
Born 15 Aug 1171 Zamora, León, Spain 
Died 24 Sep 1230 Villanueva de Sarria, Spain 
Buried Cathedral of Santiago de Compostela, Galicia, Spain 
Married Bef 17 Dec 1197 [1, 2, 3, 4] Valladolid, Castile, Spain [1, 2, 3, 4] 
Other Spouse Aldonza Martinez da Silva | F17373 Married Father Fernando II, King of Leon, Galicia, and Extremadura | F2662 Group Sheet Mother Urraca of Portugal | F2662 Group Sheet
Mother | Female
Berenguela I of Castile, Queen Of Castile & Toledo
Born 1171 Died 8 Nov 1244 Buried Abbey of Santa María la Real de Las Huelgas, Burgos, Castile, Spain 
Father Alfonso VIII, King of Castile, Toledo, and Extramadura | F4641 Group Sheet Mother Eleanor of England | F4641 Group Sheet
Child 1 | Male
+ St. Fernando III, King Of Castile, León, Galicia, Toledo, Córdoba, Jaén, and Seville
Born Between Jun 1201 and Jul 1201 En route between Salamanca and Zamora 
Died 30 May 1252 Seville, Andalusia, Spain 
Buried Cathedral Santa María, Seville, Andalusia, Spain 
Spouse Elizabeth von Hohenstaufen | F15150 Married 30 Nov 1219 Burgos, Castile, Spain 
Spouse Jeanne de Dammartin | F3808 Married Bef 31 Oct 1237 Burgos, Castile, Spain 
Child 2 | Male
+ Alfonso
Born Between 1203 and 1204 Died 6 Jan 1272 Salamanca, Salamanca, Spain 
Buried Spouse Mayor Afonso de Meneses | F15155 Married Aft 1246
Child 3 | Female
+ Bérenguère of Castile-León
Born 1204 Died 12 Apr 1237 Constantinople 
Buried Spouse Jeane de Brienne, King of Jerusalem; Latin Emperor of Constantinople | F10538 Married 1223 Burgos, Castile, Spain 
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Notes - Annulled by Pope Innocent III on grounds of consanguinity.
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013., month, year, and place only.
- [S858] Szabolcs de Vajay, "From Alfonso VII to Alfonso X: The First Two Centuries of the Burgundian Dynasty in Castile and Leon -- A Prosopographical Catalogue in Social Genealogy, 1100-1300." Studies in Genealogy and Family History in Tribute to Charles Evans on the Occasion of His Eightieth Birthday ed. Lindsay L. Brook. Salt Lake City: Association for the Promotion of Scholarship in Genealogy, 1989.
- [S1526] The Ancestry of Dorothea Poyntz, Wife of Reverend John Owsley, Generations 1-15, Fourth Preliminary Edition, by Ronny O. Bodine and Bro. Thomas Spalding, Jr. 2013., month, year, and place only.
- [S2172] Donald Lines Jacobus, "Descents from the Cid." The American Genealogist 9:99, 1932., year only.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013., month, year, and place only.