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When did Pius XII serve as pope of the Roman Catholic Church?
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Pius XII
Pius XII served as pope from 1939 to 1958; photograph by Yousuf Karsh.
Pius XII served as the pope and head of the Roman Catholic Church from 1939 to 1958. He was elected in a papal conclave following the death of his predecessor, Pius XI, in February 1939, and he remained in office until his death on October 9, 1958.12