'Pope Martin V' (ca.
1368 –
February 20,
1431), born 'Odo Colonna' (or 'Oddone Colonna') was
Pope from
1417 to
1431. His election effectively ended the
Western Schism (1378–1417).
Biography
The son of Agapito
Colonna and Caterina Conti, he belonged to one of the oldest and most distinguished families of
Rome. He became
apostolic protonotary under
Pope Urban VI (1378–89), was created
Cardinal Deacon by
Pope Innocent VII (1404–06), and in
1410 was the delegate of
antipope Alexander V (1409–10) to hear the appeal which had been taken in that year to the Papacy by
Jan Hus.
He was elected pope on
St. Martin's Day (
November 11) at the
Council of Constance by a conclave consisting of twenty-three
cardinals and thirty delegates of the council, which after deposing
antipope John XXIII (1410–15), had been for long divided by the conflicting discourses of
Pope Gregory XII (1406–15) and
antipope Benedict XIII (1394–1423)
Martin V was widely esteemed for moderation, learning, uprightness and business ability, but he is not seen as a reforming Pope. His first act after his election was to publish a brief confirming all the regulations made by his predecessors with regard to the papal
chancery, regulations which had long been the subject of complaint. When the "nations" of the council pressed their plans for reform, Martin V submitted a counter scheme, and ultimately entered into negotiations for separate
concordats, for the most part vague and illusory, with
Germany,
England, and
France.

Pope Martin's election.
He left
Constance at the close of the council (May
1418), but travelled slowly through Italy, lingered at
Florence, and did not venture to enter Rome until September
1420, when his first task was to seek to restore it to the prosperity and order to which it had become a stranger.
In that period, in
1418, a famous synod convoked by the
Jews in
Forlì, sent a deputation with costly gifts to the new pope, Martin V, praying him to abolish the oppressive laws promulgated by antipope
Benedict XIII and to grant the Jews those privileges which had been accorded them under previous popes. The deputation succeeded in its mission.
In accordance with the decree of Constance, confirmed by himself, ordering that councils should be held every five years, in
1423 Martin V summoned the council which met at
Pavia and afterwards at
Siena (the ''
Council of Siena'') - it was rather poorly attended, and in this circumstance gave the pope a pretext for dissolving it as soon as it had come to the resolution that "''internal church union by reform ought to take precedence over external union''". It was
prorogued for seven years, and then met at
Basel (the ''
Council of Basel''); shortly after its opening Martin V died of
apoplexy.
Note on numbering
When the second Pope to take the name Martin was elected, there was confusion over how many Popes had taken the name before. It was believed at the time that there were three, so the second Pope named Martin was called ''
Martin IV''. Therefore, the third Pope named Martin was called V. But, in reality, those believed to be Martin II and Martin III were actually called
Marinus I and
Marinus II, although they are sometimes still known as ''Martin II'' and ''Martin III''. This has advanced the numbering of all subsequent Popes Martin by two. Popes Martin IV-V are really the second and third popes by that name.
References
★ ''
Encyclopaedia Britannica'' 9th edition