João Dias Vieira , O Velho

João Dias' father was Diogo Álvares Vieira and his mother was Beatriz Eanes Camacho.  His maternal grandfather was João Esteves Camacho. He had four brothers and two sisters, named Álvaro Dias, Gomes Dias, Gonçalo Dias, Vicente Dias, Catarina Dias and Isabel Dias.