Mencía was born about 1215 in Vizcaya, the daughter of Lope II Díaz de Haro and Urraca Alfonso de León.
She died about 1270 in Palencia, Castilla y León, España .
She had two marriages/partners. Her first husband was Álvaro Pérez de Castro, who she married in 1234. The place has not been found. They had no known children.
Her second husband was Sancho II de Borgoña, who she married in ABT 1245. The place has not been found. They had no known children.
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Mencía López de Haro |
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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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | ABT 1215 |
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| Death | ABT 1270 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | dame de Biscaye |