Pope Pius XII

Head of the Roman Catholic Church from 1939 to 1958

Pope Pius XII was head of the Catholic Church and sovereign of the Vatican City State from 2 March 1939 until his death in October 1958. Before his election to the papacy, he served as secretary of the Department of Extraordinary Ecclesiastical Affairs, papal nuncio to Germany, and Cardinal Secretary of State, in which capacity he worked to conclude treaties with various European and Latin American nations, including the Reichskonkordat treaty with the German Reich.

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