St. John of Sahagun

John Gonzales de Castrillo (c. 1430-1479) was born at Sahagun, Leon Spain. He was educated by the Benedictine monks of Fagondez monastery there. He was ordained in 1445, spent the next four years studying at the University of Salamanca, and then began to preach. In the next decade he achieved a great reputation as a preacher and spiritual director, but after recovering after a serious operation, became an Augustinian friar in 1463 and was professed the following year. He served as master of novices, definitor, and prior at Salamanca. He experienced visions, was famous for his miracles, and had the gift of reading men's souls. He died at Sahagun on June 11, 1479, reportedly poisoned by the mistress of a man he had convinced to leave her.

He was canonized in 1690 as St. John of Sahagun. His Feast Day is June 12th.