Mstislav Mstislavich

[persoiranian]

i know here is not a history discussion topic but because Mstislav is one of the playable characters in the game i thought perhaps some one can help me with this.
Mstislav was one of the few surviviors of battle of kalka river.after the battle ,according wikipedia:Mstislav reigned in Halych until 1227, when boyar intrigues constrained him to leave the city to his son-in-law, Andrew of Hungary. Thereupon he retired to Torchesk, where he died in 1228.
where can i find some info about his later life in torchesk and whether he still had power in toerchesk or not?