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Period: Jan 1, 1378 to Jan 31, 1417
great schism
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Mar 1, 1378
The death of Pope Gregory XI
The start of the western schism -
Nov 15, 1394
pope clement vii
pope clement vii is no longer the pope and Benedict xiii starts -
Jan 1, 1409
Council of Pisa.
The council deposed both Gregory XII and Benedict XIII and then elected a third claimant, Alexander V -
Jan 1, 1418
Ended
The council of Constance ended the division.