- Apr 15 Manuel Chrysoloras, Greek humanist & grammarian, dies at 60
- Jul 6 Jan Hus, Bohemian religious reformer burned for heresy by the Church at Constance, Germany (b. 1369)
- Jul 19 Philippa of Lancaster, Queen of Portugal as wife of King John I (1387-1415), dies of the plague at 55
- Oct 13 Thomas FitzAlan, 12th Earl of Arundel, English military leader (b. 1381)
- Oct 25 Anton of Burgundy, French son of Philip the Stout, and Duke of Brabant and Limburg, dies in the Battle of Agincourt at 31
- Oct 25 Edward of Norwich, Duke of York, English nobleman and military commander, dies in the Battle of Agincourt at about 45 [birthdate uncertain]
- Oct 25 Phillip II, Count of Nevers, French earl, dies in the Battle of Agincourt at 25 or 26 [birthday uncertain]
- Oct 25 Robert of Bar, Count of Marle, French knight, dies in the Battle of Agincourt at 24 or 25 [birthday uncertain]
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning