Columbia subject headings:
Harvard subject headings:
Döllinger, Johann Joseph Ignaz von, 1799-1890.
Old Catholic Church--Biography.
Old Catholic Church.
Pius IX, Pope, 1792-1878.
Popes--Infallibility--History of doctrines.
Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano)
Princeton subject headings:
Catholic Church.
Döllinger, Johann Joseph Ignaz von, 1799-1890.
Old Catholic Church--Biography.
Pius IX, Pope, 1792-1878.
Popes--Infallibility--History of doctrines.
Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano)