The Battle of Aizkraukle or Ascheraden is a battle fought on March 5, 1279 between the Grand Duchy of Lithuania, led by Traidenis, and the Livonian branch of the Teutonic Order near Aizkraukle (German: Ascheraden) in present-day Latvia.

The Order suffers a great defeat: seventy-one knights, including the Grand Master Ernst von Rassburg, and Eilart Hoberg, leader of the knights from Danish Estonia, are killed.

Itis the second-largest defeat of the Order in the thirteenth century.

After this battle, Duke Nameisis of the Semigallians recognized Traidenis as his suzerain.