Battle on Pyana River

Battle on Pyana River (1377)
Part of the Great Troubles
Date August 2 [O.S. July 21] 1377 Location Pyana River Result Golden Horde victory
Belligerents
Pereyaslavl Yaroslavl Yuryev Nizhny Novgorod-Suzdal Murom	Golden Horde
Commanders and leaders
Ivan Dmitriyevich [ru]  †	Arab Shah Albuga [ru]

The Battle on Pyana River (Russian: Сражение на реке Пьяне) took place on August 2, 1377 on the Pyana River between the Golden Horde under Arab Shah (Arapsha) and an alliance of Russian principalities led by Prince Ivan Dmitriyevich, made up of the Pereyaslavl, Yaroslavl, Yuryev, Nizhny Novgorod, and Murom principalities.^[1]

The Russian army, being drunken, was almost entirely routed by small forces of Arapsha, while Ivan Dmitriyevich had drowned together with druzhina and staff.^[1] The river's name Pyana, translated as "drunken" from Russian, is derived from those events.^[2] The corresponding events are further recorded in the medieval Russian Chronicle On The Slaughter at Pyana River.