Vaca, Cabeza de
Vaca, Cabeza de:
see Cabeza de Vaca, Álvar NúñezCabeza de Vaca, Álvar Núñez, c.1490–c.1557, Spanish explorer. Cabeza de Vaca [cow's head] was not actually a surname but a hereditary title in his mother's family; he is frequently called simply Álvar Núñez.
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