Mstislav Svyatoslavich of Chernigov (c1162-1223)

Mstislav Svyatoslavich (baptized - Panteleimon (c1162-31 May 1223 ) - Prince of Kozelsky (1201-1226), Svyatoslav Vsevolodovich Prince of Chernigov and Grand Prince of Kiev, one of the heroes of the "Lay of Igor's Host", and the [[Mariya Vasilkovna of Polotsk (c1125-c1180)|Mariya Vasilkovna of Polotsk (c1125-c1180)/

Biography
The exact year of birth of Mstislav is unknown. He is mentioned for the first time in chronicles in 1182.

In 1191, Mstislav participated in the campaign against the Polovtsians.

In 1201, Mstislav received the rule of the Principality of Kozelsk.

In 1219 Mstislav mentioned already in Nikon's chronicle as a prince of Chernigov, where he succeeded his elder brother [[Gleb Svyatoslavich of Chernigov (c1160-1217)|Gleb.

In 1220, Mstislav defeated the invaders in his possession of the Lithuanians.

In 1223 the Polovtsian khan Kotyan Sutoevich appealed to his son-in-law, the prince of Halych Mstislav Mstislavich Udatnyi and other Russian princes, asking them for help against the Mongols who invaded their lands. South Russian princes gathered in Kiev for a council under the rule of three princes: Mstislav III Romanovich of Kiev, Mstislav Mstislavich Udatnyi and Mstislav Svyatoslavich Chernigov. At the council it was decided to oppose the Mongols.

However, the performance against the Mongols ended with the defeat of May 31 in the Battle of the Kalka River (1223). Many princes were killed. Among them was Mstislav and his eldest son Dmitri.

Family and children
Wife: Martha from 1182/1183 year, the Prussian Princess, sister of the wife of Vsevolod the Big Nest - Maria Shvarnovna.

Children :

Ivan According to some researchers, he was Prince of Kozelsk in 1223-1238 х .. Gabriel
 * Dmitri (or Vasilko ) (died May 31, 1223), Prince of Kozelski from 1216/1219.
 * Andrew . Karamzin identified him with the "sarvoglian" Prince Andrei Mstislavich, who was killed in the Horde in 1245/1246 . He was supported by Filaret Gumilevsky . But many researchers doubt the correctness of such an identification. So Zotov considered Andrei the son of Rylsky prince Mstislav Svyatoslavich (died 1241) , Voitovich - the son of Mstislav Glebovich ..