Antipope John XXIII
Italian bishop; Pisan antipope (1410–1415)
- Fame55.2
- Momentum0.0
- Religious Figures rank#226
Source-basedStable
- Fame55.2
- Momentum0.0
- Religious Figures rank#226
- Wikipedia15.5K
Lived 1370–1419, aged 49Italy
ItalySummary
Updated 2026-06-08
He held the papacy for five years, called the council that would depose him, and spent centuries listed as a legitimate pope — until another John XXIII took the name in 1958 and rewrote the record.
Biography
About
Baldassarre Cossa was born in the Kingdom of Naples and served as papal legate in Romagna in 1403. He participated in the Council of Pisa in 1408, which tried to end the Western Schism by electing a third pope, and in 1410 he succeeded Antipope Alexander V as John XXIII. At the urging of King Sigismund of Germany, he called the Council of Constance in 1413 — the same council that deposed him and Benedict XIII, accepted Gregory XII's resignation, and elected Martin V, closing the schism. He was tried for various crimes, though the charges were later disputed. Before his death in November 1419,…
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Fame
Stable55.2
Composite of search demand, mentions, audience & graph footprint.
Score components
Historical22.8
Source confidence60.0
Completeness70.0
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- WikidataHigh confidencewikidata · wikidata.org
- WikipediaHigh confidencewikipedia · en.wikipedia.org
- Pantheon 2.0High confidencedatabase · pantheon.world
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