Q. Who was Pius XII?

Pius XII was the Pope of the Roman Catholic Church from 1939 to 1958. Saint Louis University's Pius XII Memorial Library is named in his honor. For more information about his life and role in the church, please see this entry from the New Catholic Encyclopedia:

"Pius XII, Pope." New Catholic Encyclopedia Supplement 2010. Ed. Robert L. Fastiggi. Vol. 2. Detroit: Gale, 2010. 905-909. Gale Virtual Reference Library.