Kozelsk

Kozelsk was a Rurikovich principality centered on the town of Kozelsk. In 1337 Prince Titus ruled the appanage under the Principality of Karachev.

Kozelsk accepted Lithuanian suzerainty in 1371. In 1408 it passed to Moscow, whose prince Vasily I granted it to Vladimir the Bold of Serpukhov. Lithuania retook Kozelsk in 1445, but its possession by Moscow was finally confirmed in 1494.