Events

• May 21 - Treaty of Troyes. With the Burgundian faction dominant in France, King Charles VI of France acknowledges Henry V of England as his heir and as virtual ruler of most of France.
• May 25 - Henry the Navigator is appointed governor of the Order of Christ.
• Hussite Wars - Sigismund, Holy Roman Emperor fails at the battle of Vysehrad and is ejected from Bohemia.
• Catherine of Valois marries Henry V of England.
• Henry V of England commences construction of Grace Dieu (ship)
• Construction begins on the Temple of Heaven in Beijing.
• World population reaches 375 million.

Births

• November 24 - John Stafford, 1st Earl of Wiltshire, English politician (died 1473)
• Jean Fouquet, French painter (died 1481)
• Nicolas Jenson, French engraver (died 1480)

Deaths

• September 3 - Robert Stewart, 1st Duke of Albany, regent of Scotland
• Pierre d'Ailly, French theologian and cardinal (born 1350)
• Epifaniy the Wise, Russian saint
• Andrew of Wyntoun, Scottish chronicler (born 1350)

1420

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