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|1406 by topic|
|Arts and science|
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|Births – Deaths|
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|Establishments – Disestablishments|
|Art and literature|
|1406 in poetry|
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- April 4 – James I becomes King of Scotland, after having been captured by Henry IV of England.
- October 7 – French troops comprising 1,000 men at arms land on Jersey, and fight a battle against 3,000 defenders.:50–1
- October 13 – Richard Whittington is elected Lord Mayor of London for a second full term. He holds this office simultaneously, with that of Mayor of the Calais Staple.
- October 26 – Eric of Pomerania marries Philippa, daughter of Henry IV of England.
- November 30 – Pope Gregory XII succeeds Pope Innocent VII, as the 205th pope.
- December 25 – John II becomes King of Castile.
- Construction of the Forbidden City begins in Beijing during the Chinese Ming Dynasty.
- Pisa is subjugated by Florence.
- January 28 – Guy XIV de Laval, French noble (d. 1486)
- July 11 – William, Margrave of Hachberg-Sausenberg, Margrave of Hachberg-Sausenberg (1428-1441) (d. 1482)
- September 26 – Thomas de Ros, 8th Baron de Ros, English soldier and politician (d. 1430)
- date unknown
- probable date
- January 6 – Roger Walden, English bishop
- March 17 – Ibn Khaldun, African Arab historian (b. 1332)
- April 4 – King Robert III of Scotland
- May 4 – Coluccio Salutati, Chancellor of Florence (b. 1331)
- July 15 – William, Duke of Austria
- August 28 – John de Sutton V (b. 1380)
- September 16 – Cyprian, Metropolitan of Moscow
- November 1 – Joanna, Duchess of Brabant (b. 1322)
- November 6 – Pope Innocent VII
- December 25 – King Henry III of Castile (b. 1379)
- probable date – Tokhtamysh, khan of the Golden Horde