The Failed 1409 Church Council That Tried to End the Western Schism by Electing a Third Pope
The Council of Pisa met from March to August 1409 to resolve the thirty-year-old Western Schism. It deposed both the Roman and the Avignon claimants and elected a new pope, Alexander V. Neither of the previous popes accepted the deposition. The result was three simultaneous popes instead of two.
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