Year 1431 (MCDXXXI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.
January 9 – Pretrial investigations for Joan of Arc begin in Rouen, France under English occupation.
March 3 – Pope Eugene IV succeeds Pope Martin V, to become the 207th pope.
March 26 – The trial of Joan of Arc begins.
May 30 – Nineteen-year-old Joan of Arc is burned at the stake.
June 16 – the Teutonic Knights and Švitrigaila sign the Treaty of Christmemel, creating anti-Polish alliance
September – Battle of Inverlochy: Donald Balloch defeats the Royalists.
October 30 – Treaty of Medina del Campo, consolidating peace between Portugal and Castille.
December 16 – Henry VI of England is crowned King of France.
The University of Poitiers is founded.
The Ayutthaya Kingdom besieges Angkor and sack the Khmer capital, end of the Khmer Empire.
Nezahualcoyotl is crowned Tlatoani of the Kingdom of Texcoco.
Byzantine–Ottoman Wars – The Ottoman governor of Thessaly Turahan Bey breaks through the Hexamilion wall for the second time and ravages the Peloponnese peninsula.
January 1 – Pope Alexander VI (d. 1503)
October 26 – Ercole I d'Este, Duke of Ferrara, Italian politician (d. 1505)
November or December – Vlad III the Impaler, Prince of Wallachia (d. 1476)
date unknown
William Elphinstone, Scottish statesman (d. 1514)
Ladislaus Hunyadi, Hungarian statesman and warrior (d. 1457)
probable
William Hastings, 1st Baron Hastings (d. 1483)
John Neville, 1st Marquess of Montagu, English politician (d. 1471)
François Villon, French poet
Vlad III, Prince of Wallachia, A member of the House of Drăculești, as well as the Voivode of Wallachia 1456-1462
January 25 – Charles II, Duke of Lorraine (b. 1364)
February 20 – Pope Martin V (b. 1368)
April 1 – Nuno Álvares Pereira, Portuguese general and religious figure
April 5 – Bernard I, Margrave of Baden-Baden (b. 1364)
May 30 – Joan of Arc, French soldier and saint (b. c. 1412)
September 6 – Demetrios Laskaris Leontares, Byzantine soldier and statesman
date unknown
Makhdoom Ali Mahimi, Indian Sufi mystic
Stanisław of Skarbimierz, Polish theologian (b. 1360)
1431 Wikipedia (Text) CC BY-SA