War of the Castilian Succession
Vasco Gil Sodré came to Graciosa following the mysterious disappearance of Duarte Barreto do Couto, who died during a Castilian incursion into Graciosa (probably in 1475, during the War of the Castilian Succession). Becoming a widow, and alone on the island, Antónia Sodré wrote to her brother, so that he could come to stay with her.