Fernando married Princes of Swabia Elizabeth Von Hohenstaufen on 30 Nov 1219. [Group Sheet] [Family Chart]

1. Alfonso de Castilla, X was born on 23 Nov 1221 in Toledo, Castilla-La Mancha, Spain; died on 4 Apr 1284 in Sevilla, Seville, Andalucia, Spain.
2. Fernando de Castilla was born in 1227 in Spain; died after 1243 in Spain.

Fernando married Comtesse de Ponthieu Jeanne de Dammartin in Oct 1237 in Burgos, Burgos, Castilla-Leon, Spain. Jeanne (daughter of Count of Pointhieu Simon de Dammartin and Countess of Montreuil Marie de Ponthieu Montgomerie) was born in 1220 in Dammartin, Seine-et-Marne, Ile-de-France, France; died on 16 Mar 1279 in Abbeville, Somme, Picardie, France; was buried in 1279. [Group Sheet] [Family Chart]

1. Comte d'Aumale Fernando de Castilla was born in 1238; died about 1264.
2. Comtesse de Ponthieu Eleanor de Castilla was born in 1241 in Burgos, Burgos, Castilla-Leon, Spain; died on 29 Nov 1290 in Harby, Nottinghamshire, England; was buried on 16 Dec 1290 in Westminster, London, England.