1406
| Years: 1403 1404 1405 - 1406 - 1407 1408 1409 | |
| Decades: 1370s 1380s 1390s - 1400s - 1410s 1420s 1430s | |
| Centuries: 14th century - 15th century - 16th century | |
Events
- Construction of Forbidden City begins in Beijing.
- Richard Whittington becomes Lord Mayor of London.
- December 25 - John II becomes King of Castile.
- Eric of Pomerania marries Philippa, daughter of Henry IV of England.
- James I becomes King of Scotland, after having been captured by Henry IV of England.
- Richard, Earl of Cambridge, marries Anne Mortimer.
- Gregory XII succeeds Innocent VII as Pope.
- Pisa is subjugated by Florence.
- Edmund Beaufort, 2nd Duke of Somerset (approximate date)
- Ulrich Cillei, count of Cillei
- Laurentius Valla, Italian humanist
- Giangaleazzo Visconti, first duke of Milan
- Coluccio Salutati, chancellor of Florence
- Petrus Baldus de Ubaldis, Italian jurist
- Henry III, King of Castile
- January 6 - Roger Walden, Bishop of London
- March 19 - Ibn Khaldun, Arab historiographer
- April 4 - Robert III, King of Scotland
- September 3 - Robert Stewart, first Duke of Albany and brother of Robert III of Scotland
- November 6 - Pope Innocent VII