Year 1449 (MCDXLIX) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar.
January 6 – Constantine XI Palaiologos is crowned Byzantine Emperor at Mistra. He will be the last in a line of rulers that can be traced to the founding of Rome.
April 7 – The last Antipope, Felix V, abdicates.
April 19 – Pope Nicholas V is elected by the Council of Basel.
April 25 – The Council of Basel dissolves itself.
May 14 – Second Siege of Sfetigrad (1449): Garrison surrenders and Ottomans seize the fortress.
May 20 – Tensions between King Afonso V of Portugal and Peter, Duke of Coimbra erupt at the Battle of Alfarrobeira. Defeat of the Duke's forces.
August 13 – First Margrave War: Albrecht III Achilles, Elector of Brandenburg takes Lichtenau Fortress from Nuremberg.
September 3 – Battle of Tumu Fortress: The Oirat Mongols defeat the Ming dynasty army and capture the Zhengtong Emperor of China; the latter is officially deposed while his brother ascends as the Jingtai Emperor the next year.
October 29 – The French recapture Rouen from the English.
January 1 – Lorenzo de' Medici, Italian statesman (d. 1492)
January 17 – Osanna of Mantua, Italian Dominican tertiary (d. 1505)
February 7 – Adriana of Nassau-Dillenburg, Consort of Count Philip I of Hanau-Münzenberg (d. 1477)
April 27 – Asakura Ujikage, 8th head of the Asakura clan (d. 1486)
August 10 – Bona of Savoy, Duchess of Savoy (d. 1503)
September 20 – Philipp I, Count of Hanau-Münzenberg, German noble (d. 1500)
October 21 – George Plantagenet, 1st Duke of Clarence, brother of Edward IV of England and Richard III of England (d. 1478)
November 11 – Catherine of Poděbrady, Hungarian Queen (d. 1464)
November 14 – Sidonie of Poděbrady, Daughter of King of Bohemia (d. 1510)
December 6 – Dorotea Gonzaga, Italian noble (d. 1467)
date unknown
Aldus Manutius, Italian printer
Archibald Douglas, 5th Earl of Angus (d. 1513)
Domenico Gagini, sculptor (d. 1492)
Domenico Ghirlandaio, Italian artist (d. 1494)
Magnus Hundt, German physician and theologian (d. 1519)
Margaret of Thuringia, wife of the Elector of Brandenburg (d. 1501)
probable
Ilham Ghali khan of Kazan Khanate, (d. 1490)
Srimanta Sankardeva, Assamese scholar and religious figure (d. c. 1568)
Mandukhai Khatun, Mongolian queen
January 4 – Cecilia of Brandenburg, Duchess of Brunswick-Wolfenbüttel (b. c.1405)
January 21 – Giovanni Berardi, Archbishop of Taranto (b. 1380)
March – Dolce dell'Anguillara, condottiero (b. 1401)
May – Alexander of Islay, Earl of Ross, Lord of the Isles
May 20 (at the Battle of Alfarrobeira)
Álvaro Vaz de Almada, 1st Count of Avranches
Infante Pedro, Duke of Coimbra (b. 1392)
August 13 – Louis IV, Elector Palatine (b. 1424)
October 27 – Ulugh Beg, Timurid ruler and astronomer (b. 1394)
December 24 – Walter Bower, Scottish chronicler (b. 1385)
1449 Wikipedia (Text) CC BY-SA