| Male Saint Ferdinand III, King of Castile and Léon |
| Birth | Jul or Aug 1201 | Kingdom of Castile |
| Death | 30 May 1253 | Seville, Andalusia, Spain |
| Burial | ||
| Marriage | 1237 [1, 2] | Burgos, Castile and León, Spain [1, 2] |
| Other Spouse | Ethisa von Hohenstauffen | F2317 | |
| Marriage | ||
| Father | Alfonso IX, King of Léon | F2318 Group Sheet | |
| Mother | Berengaria of Castile | F2318 Group Sheet | |
Jeanne de Dammartin, Countess of Ponthieu |
| Birth | Between 1208 and 1220 | |
| Death | 16 Mar 1279 | Abbeville, Somme, Hauts-de-France, France |
| Burial | Aft 16 Mar 1279 | Valloires Abbey, Argoules, Hauts-de-France, France![]() Valloires Abbey, Argoules, Hauts-de-France, France |
| Father | Simon II de Dammartin, Count of Aumale | F2319 Group Sheet | |
| Mother | Marie of Ponthieu, Countess of Ponthieu and Montreuil | F2319 Group Sheet | |
+ Eleanor of Castile, Queen of England |
| Birth | 1240/41 | Kingdom of Castile |
| Death | 29 Nov 1290 | Harby, Nottinghamshire, England |
| Burial | After 29 Nov 1290 | Westminster Abbey, London, England![]() Westminster Abbey, London, England |
| Spouse | Edward I, King of England | F2193 | |
| Marriage | 18 Oct 1254 | Abbey of Santa María la Real de Las Huelgas, Burgos, Castile, Spain |
| Notes |
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Sources 🟢 Primary Evidence 🟡 Secondary Evidence 🟠 Tertiary Evidence 🔴 Unreliable Evidence |
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