Columbia subject headings:
Conciliar theory--History.
Council of Pisa (1409 : Pisa, Italy)
Schism, The Great Western, 1378-1417.
Harvard subject headings:
Conciliar theory--History.
Council of Pisa (1409 : Pisa, Italy)
Schism, The Great Western, 1378-1417.
Princeton subject headings:
Conciliar theory--History of doctrines--Middle Ages, 600-1500.
Council of Pisa (1409)
Papacy--History.
Schism, The Great Western, 1378-1417.