Michael of Chernigov

Michael Vsevolodovich of Chernigov (c. 1185 – 20 September 1246), son of Vsevolod the Red, ruled several principalities including Novgorod, Galicia and Chernigov, and became grand prince of Kiev in 1236. He fought the Mongols at the Kalka River in 1223 and long contested Galicia-Volhynia with Daniel of Galicia.

During the Mongol invasion in 1239 he fled to Hungary, then returned to seek a patent from Batu Khan. In 1246 Batu executed him and his boyar Theodore for refusing Mongol purification rites; the Orthodox Church venerates both as martyrs.