Titus Mstislavich
Titus Mstislavich (died after 1365) was a prince of Kozelsk from the Rurikid line of Karachev, a son of Prince Mstislav Mikhailovich. The chronicles name him only once, under 1365, when he helped Oleg of Ryazan and Vladimir of Pronsk defeat an army of the Golden Horde at Shishevsky Forest.
His sons Svyatoslav and Ivan held Karachev and Kozelsk. They married daughters of Algirdas of Lithuania and Oleg of Ryazan.