| pius x | (n) pope who condemned religious modernism; he was canonized in 1954 because of his interest in the poor (1835-1914), Syn. Giuseppe Sarto, Giuseppe Melchiorre Sarto |
| pius xi | (n) pope who signed a treaty with Mussolini recognizing the Vatican City as an independent state (1857-1939), Syn. Achille Ratti, Ambrogio Damiano Achille Ratti |
| pius xii | (n) pope who maintained neutrality during World War II and was later criticized for not aiding the Jews who were persecuted by Hitler (1876-1958), Syn. Eugenio Pacelli |