Dictionary of Battles / From the Earliest Date to the Present Time

by Thomas Benfield Harbottle

Grunnervaldt.

Fought 1404, between the Poles, under Vladislas IV, and the Teutonic Knights, under their Grand Master. The Poles gained a complete victory, and it is said that 50,000 knights perished, though it is more than doubtful whether their whole army amounted to so many.