Nielsen Hayden genealogy
Family: Ferdinand I, King of Leon / Sancha of Leon (F3014)
Munia Mayor of Castile ( -1067) 
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Garcia Sanchez III, King of Pamplona ( -1054)  |
| Alfonso V, King of Leon (996-1027)
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| Elvira Menéndez (995-1022)
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| Ferdinand I, King of Leon (1016-1065)
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| Sancha of Leon (1013-1067)
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| Alfonso VI, King of Leon, Castile, and Galicia (1039-1109) |