Monforte de Lemos
Francisco remained in Naples until April 1603. In 1616 he became Viceroy of Sicily, a position he held until 1622. In 1629, he became a Benedictine monk at the monastery of San Benito in Sahagun, with the name of Father Agustín de Castro. He died in 1637, and was interred at Monforte de Lemos, Galicia, his family's burial place.