Сигизмунд Кейстутович
The battle lasted from morning until evening. At first Sigismund's army was pushed by Švitrigaila's forces about towards Vilna, but Sigismund Kęstutaitis towards the evening beat and struck back at Švitrigailos forces. Both sides suffered heavy losses. According to the Polish chronicler Jan Długosz, about 10,000 of Švitrigaila's men were killed and 4,000 were captured. Švitrigaila escaped to Polatsk. Former voivode of Vilnius Jonas Manvydas, Jurgis Lengvenaitis ruler of Mstsislaw, Duke Jurgis Gedgaudas and other commanders of his army were taken into captivity.