Biography of Pope Pius XII. While the Pope is not divinely safeguarded from error in matters of international diplomacy, administration, and ecclesiastical appointments, the serious biographer will be cautious in criticizing seeming mistakes unless some good can come from the criticism... It is author's hope that every man will learn from the life and teaching of the Holy Father since no one can be anti-Negro, anti-Jew, anti-German, or anti-anyone without scorning the commands of Pius XII. As a boy in Rome, Eugenio Pacelli frequently would break away from sports and studies to spend hours in prayer at Chiese Nuova or at a small chapel in the neighborhood. Eugenio Pacelli was elected Pope Pius XII on March 1, 1939.