Margarida Cabral de Melo was a Portuguese noble lady. In 1599 she settled with her husband and children in Buenos Aires.
Margarida was born in Santa Maria Island, the daughter of Matias Nunes Cabral and Maria Simes de Melo. She and her husband Amador Vaz de Alpoim, sons and sister Ins Nunes Cabral , arrived to Buenos Aires from Rio de Janeiro, where they had lived for five years.
Source: Wikipedia