Male Mário Vieira Click to view Mário Vieira in the family tree in SVG format

Mário's father was António Vieira and his mother was Guilhermina Freitas Morna.  His maternal grandparents were  Julio de  Freitas Morna and  Maria Carolina Gomes.  He was the youngest of five children.  He had four brothers named António, Vasco, José and Ivo.  He died from cancer.

Mário's family with Rosalina Rodrigues Vieira

Mário and Rosalina were married (further details are not known). They had no children.