Battle of Grunwald
Poland and Lithuania break the might of the Teutonic Order

On 15 July 1410 the armies of Poland and Lithuania under Jogaila and Vytautas routed the Teutonic Order. One of the largest battles of medieval Europe, it broke the Order's power in the Baltic region.
Wikipedia (Russian) · Wikipedia (English) · 15th century
Meanwhile around the world (±25 years)
Europe
- 1385 Union of Krewo — 25 years earlier
- 1429 Joan of Arc relieves Orléans — 19 years later
Asia
- 1392 Founding of Joseon — 18 years earlier
- c. 1400 Founding of Malacca — 10 years earlier
- 1405–1433 Voyages of Zheng He — 5 years earlier
Alive at the time
- Johannes Gutenberg (aged 10)
- Andrei Rublev (aged 50)
- Sigismund (aged 42)
- Zheng He (aged 39)
- Henry V (aged 24)
- Sejong the Great (aged 13)
- Charles VII (aged 7)
- Murad II (aged 6)
- Rupert of the Palatinate (aged 58)
- Wenceslaus (aged 49)