Bio: Pope Pius XII (Italian: Pio XII; born Eugenio Maria Giuseppe Giovanni Pacelli; 2 March 1876 – 9 October 1958) was head of the Catholic Church and sovereign of Vatican City from 2 March 1939 until his death on 9 October 1958.
Pope Pius XII would have been no older than 82 in The Man Nobody Knew: In Search of My Father, CIA Spymaster William Colby as 'Self (archive footage)'.