Martin de Porres Velázquez, O.P. (December 9, 1579 – November 3, 1639), was a lay brother of the Dominican Order who was beatified in 1837 by Pope Gregory XVI and canonized in 1962 by Pope John XXIII. He is the patron saint of mixed-race people and all those seeking interracial harmony.He was noted for work on behalf of the poor, establishing an orphanage and a children's hospital. He maintained an austere lifestyle, which included fasting and abstaining from meat.