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Western Schism
Part of the crisis of the late Middle Ages
A 14th-century miniature symbolizing the schism
Date20 September 1378 – 11 November 1417
(39 years, 1 month, 3 weeks and 1 day)
TypeChristian Schism
  • Election of two popes by the College of Cardinals in 1378
  • Election of a third pope by the Council of Pisa (1409)
MotiveInternational rivalries in Catholic Europe
OutcomeReunification of Catholic Church in 1415–1429

The Western Schism, also known as the Papal Schism, the Great Occidental Schism, or the Schism of 1378 (Latin: Magnum schisma occidentale, Ecclesiae occidentalis schisma), was a split within the Catholic Church lasting from 20 September 1378 to 11 November 1417 in which bishops residing in Rome and Avignon both claimed to be the true pope, and were joined by a third line of Pisan claimants in 1409. The schism was driven by personalities and political allegiances, with the Avignon Papacy being closely associated with the French monarchy.

The papacy had resided in Avignon since 1309, but Pope Gregory XI returned to Rome in 1377. The Catholic Church split in 1378 after Gregory XI's death and Urban VI's election. A group of French cardinals declared his election invalid and elected Clement VII as pope. After several attempts at reconciliation, the Council of Pisa (1409) declared that both rivals were illegitimate and elected a third purported pope. The schism was finally resolved when the Pisan claimant Antipope John XXIII called the Council of Constance (1414–1418). The Council arranged the renunciation of both Roman pope Gregory XII and Pisan antipope John XXIII. The Avignon antipope Benedict XIII was excommunicated, while Pope Martin V was elected and reigned from Rome.

The affair is sometimes referred to as the Great Schism, although this term is usually used for the East–West Schism of 1054 between the churches remaining in communion with the See of Rome and the Orthodox Catholic Church.



The papacy had, since 1309, resided in Avignon, a papal enclave surrounded by France. Started by Pope Clement V, the Avignon Papacy had developed a reputation for corruption that estranged major parts of Western Christendom. This reputation was attributed to perceptions of predominant French influence, the papal curia's efforts to extend its powers of patronage, and attempts to increase its revenues. The last Avignon pope, Gregory XI, at the entreaty of relatives, friends, and his retinue, decided to return to Rome on 17 January 1377.[1] Gregory, however, announced his intention to return to Avignon just after the Easter celebrations of 1378.[2]

Before he could return to Avignon, Gregory XI died in the Vatican palace on 27 March 1378.[3] The Romans put into operation a plan to use intimidation and violence (impressio et metus) to ensure the election of a Roman pope.[4] The pope and his Curia were back in Rome after seventy years in Avignon, and the Romans were prepared to do everything in their power to keep them there.[5] On 8 April 1378, the cardinals elected Bartolomeo Prignano, the archbishop of Bari, as Pope Urban VI.[6]

Two popes

Map showing support for Avignon (red) and Rome (blue) during the Western Schism; this breakdown is accurate until the Council of Pisa (1409), which created a third line of claimants.

Most of the cardinals who had elected Urban VI soon regretted their decision and removed themselves to Anagni.[7] Meeting at Fondi, thirteen cardinals elected Robert of Geneva as Pope Clement VII on 20 September 1378.[8] The cardinals argued that the election of Urban VI was invalid because it had been done for fear of the rioting Roman crowds.[9] Unable to maintain himself in Anagni, following the defeat of his forces at the battle of Marino,[10] Clement VII fled to Naples ruled by one of his supporters, Queen Joanna I of Naples.[11] Despite being met regally by Joanna, Clement was met with the populace chanting, "Viva Papa Urbano" and "Muoia l'Anticristo", which convinced him to leave.[11][12] He took ship to Avignon and reestablished the papal court. Charles V of France, who seems to have been sounded out beforehand on the choice of the Roman pontiff, soon became his greatest protector.[13] Clement eventually succeeded in winning to his cause Castile, Aragon, Navarre, a great part of the Latin East, Flanders, and Scotland.[14] Years later, Owain Glyndŵr's rebellion in Wales recognized the Avignon antipope Benedict XIII.[15]


In the intense partisanship characteristic of the Middle Ages, the schism engendered a fanatical hatred noted by Johan Huizinga: "when the town of Bruges went over to the "obedience" of Avignon, a great number of people left to follow their trade in a city of Urbanist allegiance..[..].. In the 1382, the oriflamme, which might only be unfurled in a holy cause, was taken up against the Flemings, because they were Urbanists, that is, infidels."[16]

Sustained by such national and factional rivalries, the schism continued after the deaths of both Urban VI in 1389 and Clement VII in 1394. Boniface IX was crowned at Rome in 1389, and Benedict XIII, who was elected against the wishes of Charles VI of France, reigned in Avignon from 1394.[17] When Pope Boniface died in 1404, the eight cardinals of the Roman conclave offered to refrain from electing a new pope if Benedict would resign; but when Benedict's legates refused on his behalf,[a][19] the Roman party then proceeded to elect Pope Innocent VII.[18] Discussions continued instead with Innocent, but quickly stalled and by February 1405, Benedict's envoys had returned to Avignon.[18] Benedict quickly excommunicated Innocent and with an army started marching towards Rome, in May 1405. He occupied Genoa for a year and awaited French military support which never came.[18] Innocent died 6 November 1406, and Roman cardinals elected Angelo Correr as Gregory XII.[20]

The suggestion for a church council to resolve the Schism, first made in 1378, was not adopted at first, because canon law required that a pope call a council. Eventually theologians like Pierre d'Ailly and Jean Gerson, adopted arguments that permitted the Church to call a council to resolve this issue,[21] while Francesco Zabarella argued a council could be convoked by an emperor.[22]

Three popes

Benedict and Gregory agreed to abdicate their papacy in December 1406, while Benedict added that he wanted to negotiate a solution first.[20] Gregory sent an ambassador to the St. Victor abbey in Marseille, where Benedict was staying.[20] Gregory preferred Savona and Benedict concurred.[20] They balked at the last moment, and both groups of cardinals abandoned their preferred leaders.[23] The Council of Pisa met in 1409 under the auspices of the cardinals to try solving the dispute.[23] At the fifteenth session, 5 June 1409, the Council of Pisa attempted to depose both the Roman pope and Avignon antipope as schismatical, heretical, perjured and scandalous,[24] but it then added to the problem by electing Peter Philargi, the cardinal archbishop of Milan, as Alexander V.[25] He reigned briefly in Pisa from June 26, 1409, to his death in 1410,[26] when he was succeeded by, Baldassare Cossa as John XXIII,[27] who won some but not universal support.

Council of Constance

Habemus Papam at the Council of Constance

The Council of Constance was convened by the Pisan pope John XXIII in 1414 to resolve the schism.[28] The council was also endorsed by the Roman pope Gregory XII, giving it greater legitimacy.[29] On 6 April 1415, the council issued, Haec sancta, stating that the council is the Church's highest governing body and has the authority to remove popes.[30]

The council, advised by the theologian Jean Gerson, secured the resignation of Gregory XII and the detention and removal of John XXIII.[31] The Avignon antipope Benedict XIII, who refused to step down, was excommunicated on 27 July 1417 having lost all his supporters in the process.[32][31] The Council elected Pope Martin V in 1417, essentially ending the schism.[33]

Benedict XIII, recognized by King Martin of Aragon, back in 1397, chose to ignore pleas for his resignation.[34] Benedict died 23 May 1423: to succeed him three cardinals elected Gil Sanchez Munoz y Carbon as Clement VIII.[35] Clement VIII resigned in 1429 and recognized Martin V, ending the Avignon Papacy once and for all.[35]


Conciliarism gained impetus due to the Schism.[36] This new reform movement held that a general council is superior to the pope on the strength of its capability to resolve ecclesiastical issues. Theorists such as Jean Gerson, explained that the priests and the church itself are the sources of the papal power and, thus, the church should be able to correct, punish, and, if necessary, depose a pope.

Pope Pius II (r. 1458–1464), on 18 January 1460, issued the bull Execrabilis which forbids any attempt to appeal papal judgements to general councils.[37]

There was also a marked decline in discipline within the church. Scholars note that the Western Schism effectively eroded the church's authority and its capacity to proclaim the gospel.[38] This was further aggravated by the dissension caused by the Protestant Reformation, which created unrest.

Official list of popes

Plaque commemorating the popes buried in St. Peter's. Alexanders VI, VII, and VIII are numbered as though the Pisan pope Alexander V were legitimate, but John XXIII (d. 1963) has reused the ordinal of the Pisan pope John XXIII.

For the next five centuries, the Catholic Church recognized the Roman popes as the legitimate line from 1378 to 1409, followed by the Pisan popes from 1409 to 1415. All Avignon popes after 1378 are considered to be antipopes. This recognition is reflected in the numbering of popes Alexander VI, VII, and VIII, who numbered themselves consecutively after their Pisan namesake Alexander V.

The recognition of the Pisan popes made the continued legitimacy of the Roman pope Gregory XII doubtful for 1409–1415. The Annuario Pontificio for 1860 listed the Pisan popes as true popes from 1409 to 1415, but it acknowledged that Gregory XII's reign ended in either 1409 or 1415.

The Western Schism was, in practice, reinterpreted in 1958 when Angelo Giuseppe Roncalli chose to reuse the ordinal XXIII upon his election as Pope John XXIII, citing "twenty-two [sic] Johns of indisputable legitimacy."[39] (There had actually been twenty undisputed Johns due to antipopes and numbering errors.) Although Roncalli's declaration on assuming the name specified that his decision was made "apart from disputes about legitimacy", this passage was subsequently excised from the version appearing in the Acta Apostolicae Sedis, and the Pisan popes Alexander V and John XXIII have since been classified as antipopes by the Roman Curia.[40] The reinterpretation is reflected in modern editions of the Annuario Pontificio, which extend Gregory XII's reign to 1415. The line of Roman popes is now retroactively recognized by the Catholic Church as the sole legitimate line during the Western Schism. However, Popes Alexander VI through VIII have not been renumbered, leaving a gap in the numbering sequence.

According to Broderick (1987):

Doubt still shrouds the validity of the three rival lines of pontiffs during the four decades subsequent to the still disputed papal election of 1378. This makes suspect the credentials of the cardinals created by the Roman, Avignon, and Pisan claimants to the Apostolic See. Unity was finally restored without a definitive solution to the question; for the Council of Constance succeeded in terminating the Western Schism, not by declaring which of the three claimants was the rightful one, but by eliminating all of them by forcing their abdication or deposition, and then setting up a novel arrangement for choosing a new pope acceptable to all sides. To this day the Church has never made any official, authoritative pronouncement about the papal lines of succession for this confusing period; nor has Martin V or any of his successors. Modern scholars are not agreed in their solutions, although they tend to favor the Roman line.[41]


Recognition of papal claimants
Papacy Avignon popes Roman popes Pisan popes (from 1409)


  1. ^ According to Joëlle Rollo-Koster, Benedict's legates were imprisoned until after the conclave ended.[18]


  1. ^ Kelly 1986, p. 227.
  2. ^ Gregorovius 1906, p. 490-491.
  3. ^ Logan 2002, p. 306.
  4. ^ Rollo-Koster 2009, p. 19-21.
  5. ^ Creighton 2012, p. 50.
  6. ^ Richardson 2009, p. xxi.
  7. ^ Atwood 2001, p. 23.
  8. ^ Rollo-Koster 2009, p. 13.
  9. ^ Fleck 2009, p. 241.
  10. ^ Keen 2010, p. 311.
  11. ^ a b Creighton 2012, p. 68.
  12. ^ Trexler 1974, p. 141.
  13. ^ Scott 1993, p. 87.
  14. ^ Walsh 2011, p. 157.
  15. ^ Swanson 2021, p. 85.
  16. ^ Huizinga 1924, p. 14.
  17. ^ Blumenfeld-Kosinski 2009, p. 127.
  18. ^ a b c d Rollo-Koster 2022, p. 49.
  19. ^ Logan 2002, p. 318.
  20. ^ a b c d Rollo-Koster 2022, p. 50.
  21. ^ Linder 2008, p. 7.
  22. ^ Stump 2009, p. 402-403.
  23. ^ a b Logan 2002, p. 318-319.
  24. ^ Logan 2002, p. 319-320.
  25. ^ Logan 2002, p. 320.
  26. ^ Logan 2002, p. 320-321.
  27. ^ Rollo-Koster 2022, p. 59.
  28. ^ Rosenwein 2018, p. 323.
  29. ^ Bellitto 2002, p. 87-88.
  30. ^ McGuire 2006, p. 23.
  31. ^ a b Riccoboni 2000, p. 61.
  32. ^ Kneupper 2016, p. 61.
  33. ^ González 2010, p. 408-409.
  34. ^ O’Callaghan 1975, p. 539-540.
  35. ^ a b Fleck 2016, p. 266.
  36. ^ Orji 2021, p. 191.
  37. ^ O'Brien 2015, p. 81.
  38. ^ Coriden 2004, p. 21.
  39. ^ "I Choose John ..." Time. 10 November 1958. p. 91.
  40. ^ Oakley 2008, p. 89.
  41. ^ Broderick 1987, p. 14.