The

Council of Basel The Council of Florence is the seventeenth ecumenical council recognized by the Catholic Church, held between 1431 and 1445. It was convened in territories under the Holy Roman Empire. Italy became a venue of a Catholic ecumenical council aft ...

decreed, in its 23rd session (26 March 1436) that anyone elected Pope should make, as a condition for his election to be valid, the "profession of the supreme pontiff", a formula declaring recognition of the Council as a "General Council" that it drew up specifically for that purpose. What the formula that each

cardinal Cardinal or The Cardinal most commonly refers to * Cardinalidae, a family of North and South American birds **''Cardinalis'', genus of three species in the family Cardinalidae ***Northern cardinal, ''Cardinalis cardinalis'', the common cardinal of ...

, meeting in

conclave A conclave is a gathering of the College of Cardinals convened to appoint the pope of the Catholic Church. Catholics consider the pope to be the apostolic successor of Saint Peter and the earthly head of the Catholic Church. Concerns around ...

, was called upon to swear, declaring: "I shall not make obeisance to anyone elected as pontiff before he takes the ''oath'' prescribed by this council of Basel", refers to as an oath must be this profession of faith. No Pope actually made the Council's profession of faith apart from the Pope that the Council itself created,

Felix V Amadeus VIII (4 September 1383 – 7 January 1451), nicknamed the Peaceful, was Count of Savoy from 1391 to 1416 and Duke of Savoy from 1416 to 1440. He was a claimant to the papacy from 1439 to 1449 as Felix VWhen numbering of the popes began ...

, who is not included in the

list of popes This chronological list of the popes of the Catholic Church corresponds to that given in the under the heading "" (The Roman Supreme Pontiffs), excluding those that are explicitly indicated as antipopes. Published every year by the Roman Curia ...

, but only in that of

Antipope An antipope () is a person who claims to be Bishop of Rome and leader of the Roman Catholic Church in opposition to the officially elected pope. Between the 3rd and mid-15th centuries, antipopes were supported by factions within the Church its ...

References

1436 in Europe 1430s in religion 15th-century Catholicism History of the papacy Amadeus VIII, Duke of Savoy {{Catholic-Church-stub