The Great Schism By ckslucy 1377 The death of Pope Gregory XI 1378 Pope Urban VI elected 1378 Clement VII is elected as Antipope Period: 1378 to 1389 R. Urban VI Period: 1378 to 1394 A. Clement VII 1389 Pope Boniface IX is elected Period: 1389 to 1404 R.Boniface IX 1394 Benedict XIII is elected as antipope Period: 1394 to 1423 A. Benedict XIII 1404 Pope Innocent VII is elected Period: 1404 to 1406 Innocent VII 1406 Pope Gregory XII is elected Period: 1406 to 1415 R. Gregory XII 1409 Alexander V elected as antipope Period: 1409 to 1410 P. Alexander V 1410 John XXIII Period: 1410 to 1415 P. John XXIII Period: 1414 to 1418 Council of Constance 1417 Matin V was elected pope
