Great Western Schism By marlel 1377 Death of Pope Gregory Xl 1378 Pope Urban Vl of Rome 1378 Antipope Clement Vll of Avignon Period: 1378 to 1389 R. Pope Urban Vl Period: 1378 to 1394 A. Antipope Clement Vll 1389 Pope Boniface lX of Rome Period: 1389 to 1404 R. Pope Boniface lX 1394 Antipope Benedict Xlll of Avignon Period: 1394 to 1423 A. Antipope Benedict Xlll 1404 Pope Innocent Vll of Rome Period: 1404 to 1406 R. Innocent Vll 1406 Pope Gregory Xll of Rome Period: 1406 to 1415 R. Pope Gregory Xll 1409 Antipope Alexander V of Pisa Period: 1409 to 1410 P. Antipope Alexander V 1410 Antipope John XXlll of Pisa Period: 1410 to 1415 P. Antipope John XXlll Period: 1414 to 1418 Council of Constance 1417 Pope Martin V of Avignon election
