Kirillo-Belozersky Monastery
In 1389, it was subjugated by Muscovy. Dmitry Donskoy, the Grand Prince of Moscow, handed the principality out to his son Andrey Dmitriyevich. In the end of the 14th century, two influential monasteries were founded at the lands belonging to the principality: Kirillo-Belozersky Monastery in 1397 and Ferapontov Monastery in 1398. The creation was supported by the Moscow princes who considered the foundation of the monasteries as an avenue of the influence of Moscow in the North.