Family/Spouse: Rey de Castilla y Leon Alfonso de Castilla, VI. Alfonso (son of Rey de Castilla y Leon Fernando I de Castilla and Sancha Aybar de Léon) was born before Jun 1040 in Burgos, Castilla-Leon, Spain; died on 29 Jun 1109 in Toledo, Castilla-La Mancha, Spain. [Group Sheet] [Family Chart]