1409
| Years: 1406 1407 1408 - 1409 - 1410 1411 1412 | |
| Decades: 1370s 1380s 1390s - 1400s - 1410s 1420s 1430s | |
| Centuries: 14th century - 15th century - 16th century | |
Events
- January 1 - The Welsh surrender Harlech Castle to the English.
- March 25 - The Council of Pisa opens.
- Martin I of Aragon becomes King of Sicily
- Ulugh Beg becomes governor of Samarkand
- Venice buys the port of Zadar from Hungary
- January 16 - Rene I of Naples
- February 9 - Constantine XI, last Byzantine Emperor
- Charles VIII, King of Sweden