Council of Basel

 SESSION 1 14 December 1431

 SESSION 2 15 February 1432

 SESSION 3 29 April 1432

 SESSION 4 20 June 1432

 SESSION 5 9 August 1432

 SESSION 6 6 September 1432

 SESSION 7 6 November 1432 [Interval for a papal election]

 SESSION 8 18 December 1432

 SESSION 9 22 January 1433

 SESSION 10 19 February 1433

 SESSION 11 27 April 1433

 SESSION 12 13 July 1433

 SESSION 13 11 September 1433

 SESSION 14 7 November 1433

 SESSION 15 26 November 1433

 SESSION 16 5 February 1434

 SESSION 17 26 April 1434

 SESSION 1 8 26 June 1434

 SESSION 19 7 September 1434

 SESSION 20 22 January 1435

 SESSION 21 9 June 1435

 SESSION 22 15 October 1435

 SESSION 23 26 March 1436

 SESSION 24 14 April 1436

 SESSION 25 7 May 1437

 SESSION 1 8 January 1438

 SESSION 2 10 January 1438 [On the legitimate continuation of the council of Ferrara, against the assembly at Basel]

 SESSION 31 15 February 1438

 SESSION 42 9 April 1438

 SESSION 5' 10 January 1439

 SESSION 6 6 July 1439

 SESSION 7 4 September 1439

 SESSION 8 22 November 1439 [Bull of union with the Armenians]

 SESSION 9 23 March 1440

 SESSION 10 27 May 1440

 SESSION 11 4 February 1442

 SESSION 12 14 October 1443

 SESSION 13 30 November 1444

 SESSION 14 7 August 1445

SESSION 1 8 January 1438

[Declaration of cardinal Nicholas Albergati, president of the council]

We, Nicholas, legate of the apostolic see, announce that we preside on behalf of our most holy lord pope Eugenius IV in this sacred synod which was translated from Basel to the city of Ferrara and is already legitimately assembled, and that the continuation of this translated synod has been effected today 8 January, and that the synod is and ought to be continued from today onwards for all the purposes for which the synod of Basel was convened, including being the ecumenical council at which the union of the western and the eastern church is treated and with God's help achieved.