 Fernando De La Cerda, son of Alfonso X "El Sabio" Rey de Castilla and Violante (Yolande) of Aragon.Nickname: Principe de Castilla, born ENE 4, 1255 at Sevilla,Sevilla,Spain, died Jul 25, 1275 at Allariz,Orense,Spain, 19 or 20 years Married 1269 (5 or 6 years married) to:  Blanche de France, daughter of Louis IX "El Santo" de France and Marguerite de Provence Berenger.Born 1253 at Jaffa,Palestina, died 1321 at Paris,Francia, 67 or 68 years Children: 2. Alfonso De la Cerda De CastillaNickname: Rey Titular de Castilla Y Aragón, born 1270 at Piedrahita,España, died 1333, 62 or 63 years | |||