Ulrich von Jungingen becomes Grand Master of the Teutonic Knights.
Ulrich von Jungingen (1360 – 15 July 1410) was the 26th Grand Master of the Teutonic Knights, serving from 1407 to 1410. His policy of confrontation with the Grand Duchy of Lithuania and the Kingdom of Poland would spark the Polish–Lithuanian–Teutonic War and lead to disaster for his Order, and his own death, at the Battle of Grunwald.