He was ordained to the priesthood on 31 May 1947 in Milan, by Alfredo Schuster then Archbishop of Milan. He taught at the archiepiscopal school in Desio from 1947 until 1949.
He received his priestly vows on 31 May 1947 in Milan, under the supervision of Alfredo Schuster, who was the spiritual leader of Milan. From 1947 to 1949, he worked as an educator at a school linked to the archdiocese in Desio.