Stefan Wyszynski was a Polish prelate of the Roman Catholic Church. He served as the bishop of Lublin from 1946 to 1948, archbishop of Warsaw and archbishop of Gniezno from 1948 to 1981. Appointed cardinal on 12 January 1953 by Pope Pius XII, he assumed the title of Primate of Poland. Stefan Wyszyński was often called the Primate of the Millennium.