Great Western Schism By gracee_is_bob 1368 Pope of Rome Urban the VI 1377 Death of Pope Gregory XI 1378 Boniface IX Pope of Rome 1378 Clement VII Antipopes of Avignon Period: 1378 to 1389 R. Urban VI Period: 1378 to 1394 C. VII Anipopes of Avignon Period: 1389 to 1404 B. Pope of Rome 1394 Benedint XIII Antipopes of Avignon Period: 1394 to 1423 B.XIII Antipopes of Avignon 1404 Innocent VII Popes of Rome Period: 1404 to 1406 I. Pope of Rome VII 1406 Gregory XII Popes of Rome Period: 1406 to 1415 G.XII Pope of Rome 1409 Alexander V Antipope of Pisa Period: 1409 to 1410 A. V Antipopes of Pisi 1410 John XXII Antipope of Pisa Period: 1410 to 1415 J. XXII Antipopes of Pisa