Sancho was born in 1342, the son of Alfonso XI de Castilla y León and Leonor de Guzmán y Ponce de León. The place is not known.
He died on 19 FEB 1374 in Burgos, Castilla y León, España .
His wife was Brites de Portugal, who he married in 1474. The place has not been found. Their two known children were Leonor III Urraca Sánchez (1373/74-1435) and Fernando Sánchez (1373-1385).
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Sancho Alfónsez de Castilla |
Alfonso XI de Castilla y León |
Fernando IV de Castilla |
Sancho IV Alfonsez de Castilla |
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María Alfonso de Molina |
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Constança de Portugal |
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Leonor de Guzmán y Ponce de León |
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | 1342 |
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| Death | 19 FEB 1374 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | conde de Albuquerque | |||||
| Nobility Title | conde de Alburquerque |