Mstislav II Svyatoslavich

Mstislav II Svyatoslavich (c. 1168 – May 31, 1223) was a Rus' prince (a member of the Rurik dynasty). His baptismal name was Panteleymon. He was probably prince of Kozelsk (1194–1223), of Novgorod-Seversk (1206–1219), and of Chernigov (1215/1220–1223). He was killed in the Battle of the Kalka River.

He was the youngest son of Grand Prince Svyatoslav Vsevolodovich of Kiev and Maria Vasilkovna of Polotsk.

At the beginning of 1182, when his father and Prince Vsevolod Yuryevich of Suzdalia concluded peace, the latter promised to give his wife’s sister as wife to Mstislav. Mstislav married Yasynya (whose Christian name was Marfa) at the beginning of 1183.

In the summer of 1184, his father launched a major campaign against the Cumans and summoned him. In 1189, after the Hungarians had occupied the principality of Halych, his father agreed to attack them with Prince Rurik Rostislavich of Belgorod, and Mstislav rode with his father. However, his father and Rurik Rostislavich failed to reach an agreement on the partition of the lands to be occupied, and thus they returned home. In 1192, his father sent him and his elder brothers (Vladimir and Vsevolod Svyatoslavich) to take part in the campaign of Igor Svyatoslavich, Prince of Novgorod-Seversk against the Cumans, but on seeing that they were outnumbered Igor Svyatoslavich resolutely ordered his troops to steal away under the cover of darkness.

His father died in the last week of July, 1194, and his only brother, Yaroslav II Vsevolodovich of Chernigov became the senior prince of his dynasty; thus the genealogical reshuffle made Svyatoslav Vsevolodovich's sons (among them Mstislav) answerable to their uncle. Mstislav probably inherited Kozelsk from his father who divided up the Vyatichi lands among his several sons.

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