Antipope John XXIII
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Baldassarre Cossa was Pisan antipope as John XXIII during the Western Schism. The Catholic Church today regards him as an antipope in opposition to Pope Gregory XII, whom it recognizes as the rightful
Miniature from the Chronicle of the Council of Constance by Ulrich of Richenthal
Tomb of Antipope John XXIII
Jean-Allarmet de Brogny
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Jean-Allarmet de Brogny was a French Cardinal who presided over the Council of Constance.
Jean-Allarmet de Brogny
