Battle of Tannenberg (1410)

It was a battle between two alliances. On the one hand, the Polish, Lithuanian, Russian and Tatar forces under the command of the Lithuanian-Polish king Wladyslaw Jogaila (about 39,000 troops). On the other hand, forces of the Teutonic Knights and its Bohemian and other allies (about 27,000 troops) under the Great Master of the Teutonic Order Urlich von Jungingen[?].

The Battle was won by Jagiello's forces. Ulrich von Jungingen died in battle. After this battle the Teutonic Knights never regained its previous power.

See History -- Military history -- List of battles -- History of Poland -- History of Prussia -- History of Lithuania