Mstislav Svyatoslavich of Rylsk (c1188-1241)

Mstislav Svyatoslavich of Rylsk (? - 1241) - Prince of Rylsk (after 1191 -1241), the son of Svyatoslav Olgovich, a participant in the Polovtsy campaign in 1185 and one of the heroes of The Lay of Igor's Host.

Mstislav Svyatoslavich rules Rylsk after the death of his father. It can be assumed that Mstislav, along with his elder brother Oleg and other Princes of Chernigov and Princes of Novgorod-Seversky, took part in the Battle of the Kalka River (1223). In 1241, after the Mongol invasion of the Principality of Chernigov and before Batu's return from the campaign to Central Europe, was killed by the Mongols under unknown circumstances.

Marriage and children
Nothing is known about Mstislav's wife.

He had two sons :

Andrei ( presumably ) ( 1245 ) Oleg ( 1285 )