Principality of Mezetsk

The Principality of Mezetsk was established around 1360 having the capital in Mezetsk (now Meshchovsk in Kaluga Oblast, Russia.

The treaty of 1484 between the Grand Duchy of Lithuania and the Grand Duchy of Moscow, the principality was to be ruled joinly [[Fedor Fedorovich Sukhoy, Vasili Fedorovich Kukubyaka, Mikhail Romanovich, Vasili Ivanovich Govdyrevsky and Fedor Ivanovich Govyrevsky.