Western Schism

split within the Catholic Church from 1378 to 1417, in which bishops in Rome and Avignon both claimed to be the pope, joined by a third line of Pisan popes in 1409

The Western Schism was a split between factions of the Roman Catholic Church between 1378 and 1417.[1]

During this period, more than one claimed to be the true pope.[1]

The reasons for the split were mostly political, rather than theological. The Council of Constance (1414–1418) ended the schism when they elected Martin V as the new pope.

Popes of the Western Schism
Antipope John XXIIIAntipope John XXIIIAntipope Alexander VPope Gregory XIIPope Innocent VIIPope Innocent VIIPope Boniface IXPope Urban VIAvignon Pope Benedict XIIIAvignon Pope Clement VIIPope Martin VPope Gregory XI


  1. 1.0 1.1 "Western Schism," Catholic Encyclopedia (2009); retrieved 2011-11-29.

Other websites


  "Western Schism" . Catholic Encyclopedia. New York: Robert Appleton Company. 1913.