Diogo I, Duke of Viseu

Infante Diogo of Viseu (1450–1484) (1450–1484)

Parents

• Infanta Beatrice, Duchess of Viseu
• Infante Ferdinand, Duke of Viseu

Children

• Afonso de Viseu

Siblings

• Infante John, Duke of Viseu
• Eleanor of Viseu
• Isabella of Viseu
• Manuel I of Portugal

Partners

• Leonor de Sotomayor y Portugal