Diaz, Pedro a Spanish missionary, was born at Lupiona, near Toledo, in 1546. He entered the order of the Jesuits in 1566, and was, in 1572, one of the first Roman Catholic missionaries who were sent to Mexico. He twice went to Rome as a delegate of his order, and died as prefect of the Jesuits for the province of Mexico, in the city of Mexico, Jan. 12,1633. He wrote Littera de Missionibus per Indianm occidentalem ab Jesuitis (from 1591 to 1610), and Epistole de 52 Jesuitis interfectis in Brasilia (Antwerpen, 1605, 8vo). — Hoefer, Biographie Generale, 14:55.