GREAT WESTERN SCHISM By val_is_savage 1377 Death of Pope Gregory 1378 Pope of Rome Urban VI Elected 1378 Antipope of Avignon Clement VII Period: 1378 to 1389 R. Urban VI Period: 1378 to 1395 Antipope of Avignon Clement VII 1389 Pope Boniface IX (Rome) Elected Period: 1389 to 1404 Pope Boniface IX (Rome) Elected 1394 Antipope of Avignon Benedict XIII Period: 1394 to 1423 Antipope of Avignon Benedict XIII 1404 Pope Innocent VII (Rome) Elected Period: 1404 to 1415 Pope Innocent VII (Rome) Elected 1406 Pope Gregory XII (Rome) Elected Period: 1406 to 1415 Pope Gregory XII (Rome) Elected 1409 Antipope of Pisa Alexander V Period: 1409 to 1415 Antipope of Pisa Alexander V 1410 Antipope of Pisa John XXIII Period: 1410 to 1415 Antipope of Pisa John XXIII Period: 1414 to 1418 Council of Constance 1417 Pope of Rome Martin V (Elected)