1397
| 1397 • John Holland, Earl of Huntingdon is created Duke of Exeter by his half-brother King Richard II of England. |
1419
Age: 22y
birth of childNicholas Van Deursen Asperen, Leerdam, Zuid-Holland, Holland ⇓ 1 Source ⇓ |
| 1419 • The University of Rostock is established as the oldest university of northern Europe. |
1419
Age: 22y
marriageJan Van Deursen 1 Source ⇓ |
| 1419 • The Oei Invasion of Tsushima Island in Japan by Joseon Korea begins. |
1423
Age: 26y
| 1423 • Hussite Wars – Battle of Horic: The Taborites decisively beat the Utraquists. |