>>511121231
>https://en.m.wikipedia.org/wiki/Mongol_invasion_of_Europe

Employed against the Mongol invaders of Europe, knightly warfare failed even more disastrously for the Poles at the Battle of Legnica and the Hungarians at the Battle of Mohi in 1241. Feudal Europe was saved from sharing the fate of China and the Grand Duchy of Moscow not by its tactical prowess but by the unexpected death of the Mongols' supreme ruler, Ögedei, and the subsequent eastward retreat of his armies.