Mencía was the daughter of Lope I Díaz de Haro and Aldonza Rodríguez de Castro. The date and place of her birth have not been found.
Her husband was Álvar Pérez de Lara. They were married, but the date and place have not been found. They had no known children.
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Lope I Díaz de Haro |
Diego I (III) López de Haro |
Lope Íñiguez |
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Aldonza Rodríguez de Castro |
Rui Fernández de Castro |
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Estefanía Pérez de Trava |
Pedro Froílaz de Trastámara |
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Maior Armengol de Urgell |
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | fundadora y abadesa del San Andrés de Arroyo |