The Prince of Beloozero () was the title of the ruler of the Principality of Beloozero.
History Before 1238, it formed part of the Principality of Rostov, which also included the lands around Yaroslavl, Uglich and Ustyug.Martin, Medieval Russia, pp. 161-2. It was detachted from Rostov in 1238 when, following the death of Vasilko Konstantinovich, the prince of Rostov, his younger son Gleb Vasilkovich took Beloozero while his older son Boris Vasilkovich became his successor at Rostov.Martin, Medieval Russia, p. 161.
The princedom gave rise to the princely noble surname of Belozersky (). Subsequently, the only surviving branch of this Russian princely family (meaning direct male descendants) are the princes Belosselsky-Belozersky. Emperor Paul I gave this honor to Alexander Mikhailovich Belosselsky-Belozersky and his descendants.
List of princes
Gleb Vasilkovich, 1238–1278 Between death of Gleb and 1302, under rule of Dmitry Borisovich, Prince of Rostov Mikhail Glebovich, 1278–1293 Fyodor Mikhaylovich, 1293–1314 Roman Mikhaylovich, 1314–1339 Ivan Kalita, 1328–1338, who had purchased the principality.Martin, Medieval Russia, p. 188. Fyodor Romanovich, 1339–1380 (died at Kulikovo) Yury Vasilyevich (grandson of Roman), after 1380
Came into the hands of the ruler of Moscow, the Grand Prince of Vladimir Dmitry Donskoi, whose son Andrei, and his son Mikhail, remained nominal princes until its final annexation into the Muscovite state in 1485.
References
Bibliography Martin, Janet, Medieval Russia, 980-1584, (Cambridge, 1995)