1398. The creation was supported by the Moscow princes who considered the foundation of the monasteries as an arm of the influence of Moscow in the north. In 1486, the principality, which at the time was part of the united Principality of Beloozero and Vereya, was formally incorporated into the Grand Duchy of Moscow. Numerous descendants of the ruling Rurikid princes moved to Moscow and continue in a male line to the present. The Belosselsky-Belozersky family was the most notable among them. Economy The chronicle suggests a high importance to Beloozero as it was the residence of Rurik's brother, yet the town did not develop into a major political center, however it became a frequent port of call. Eventhough Beloozero was a small rural settlement, Scandinavian items such as combs have been excavated there, suggesting extensive trade networks. Furthermore, 10th century fragments found in Beloozero suggest imports from the southern regions to the town. Kievan glassware was traded in Beloozero, indicating trade contacts between the towns. References Medieval Russia Former Slavic countries States and territories established in 1238 Former principalities History of Vologda Oblast Subdivisions of Kievan Rus'