The
Catholic Encyclopedia notes the historically obscure renunciations of
Pontian (230–235) and
Marcellinus (296–308), the historically postulated renunciation of
Liberius (352–366),
11th century The first historically unquestionable Gregory himself resigned in 1046 because the arrangement he had entered into with Benedict could have been considered
simony. Gregory was followed by
Clement II, and when Clement died, Benedict IX returned to be elected to the papacy for a third time, only to resign yet again before dying in a monastery. He was thus pope for three non-consecutive periods of time, and either resigned or was deposed three times.
Celestine V A well-known renunciation of a pope is that of
Celestine V, in 1294. After only five months as pope, he issued a solemn decree declaring it permissible for a pope to resign, and then did so himself. He lived two more years as a
hermit and then prisoner of his successor
Boniface VIII, and was later
canonised. Celestine's decree, and Boniface concurring (not revoking it), ended any doubt among canonists about the possibility of a valid papal renunciation.
Western Schism Gregory XII (1406–1415) resigned in 1415 in order to end the
Western Schism, which had reached the point where there were three claimants to the papal throne: Gregory XII in Rome,
Benedict XIII in
Avignon, and
John XXIII in
Pisa. Before resigning, he formally convened the already existing
Council of Constance and authorized it to elect his successor.
Benedict XVI Benedict XVI's renunciation of the papacy took effect on 28 February 2013 at 20:00 (8:00 pm)
CET (19:00 UTC), after being announced on the morning of 11 February by the
Vatican. He was the first pope to relinquish the office since
Gregory XII resigned to end the
Western Schism in 1415 and the first to do so on his own initiative since
Celestine V in 1294. His action was unexpected, given that the
modern era popes have held the position from election until death. The
conclave to select his successor began on 12 March 2013 and elected Cardinal
Jorge Mario Bergoglio, Archbishop of Buenos Aires, who took the name
Francis. ==List of papal renunciations==