Battle of Voronezh River

Battle of Voronezh River
	Part of the Mongol invasion of Kievan Rus'
	; The Ryazan's prince rejects the Mongols’ tribute demand.
Date	December 1237
Location	Voronezh (river)
Result	Mongol victory Ryazan besieged afterwards;
Belligerents
Mongol Empire	Principality of Ryazan
Commanders and leaders
Batu Khan; Subutai	Yuriy Igorevich of Ryazan; Roman Ingvarevich of Kolomna
Strength
Several tumen of nomad cavalry	A few hundred cavalry and no more than 1,000–2,000 militia on foot
Casualties and losses
Light	Heavy, but some units escaped to Kolomna

The Battle of Voronezh River happened during the Mongol invasion of Kievan Rus'. The Principality of Ryazan was the first to be attacked.

^ ^a ^b Grigorjevič, Jan Vasilij (1991). Batu-kan : istorijski roman. Lobačev, Đorđe., BIGZ). Beograd: Prosveta. ISBN 8607005944. OCLC 438360055.