SOURCE NOTES: date: 960/962 [Ref: ES II #51] first marriage of Urraca [Ref: ES III #563] second marriage of Fernando [Ref: Moriarty p70, Moriarty p79] seconf marriage of Fernan and first of Urazia [Ref: Moriarty p225] RESEARCH NOTES: date: 900/902 [Ref: ES II #54]