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Pope Pius IX - Wikipedia
Pius IX | Pope, Italian Statesman & Papal Reformer | Britannica
Roman Catholicism - Pius IX, Papal States, Syllabus Errorum
Why Pius IX Might Be The 'Most Important Pope' In Modern Church ... - NPR
The remarkable life and papacy of Blessed Pope Pius IX
Pope Pius IX | Catholic Answers Encyclopedia
Pius Ix - Encyclopedia.com
Pius IX - Vatican
Bl. Pope Pius IX - Vatican
Pope Pius IX - Simple English Wikipedia, the free encyclopedia