- May 4 Religious reformers John Wycliffe and Jan Hus are condemned as heretics at the Council of Constance
- Jul 4 Angelo Correr renounces his claim to the Papacy as Pope Gregory XII
- Jul 6 Jan Hus is burned at the stake
- Aug 13 King Henry V of England army lands on mouth of Seine River
- Oct 25 Battle of Agincourt: Henry V's forces defeat larger French army and the longbow defeats the armoured knight
- Oct 25 John IV van Bourgondy becomes Duke of Brabant and Limburg