Sancho was the son of Lope II Díaz de Haro and Urraca Alfonso de León. The date and place of his birth have not been found.
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Lope II Díaz de Haro |
Diego II López de Haro |
Lope I Díaz de Haro |
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Aldonza Rodríguez de Castro |
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María Manrique de Lara |
Manrique Pérez de Lara |
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Ermisende de Narbonne |
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Urraca Alfonso de León |
Alfonso IX de León |
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