Yaroslavl
Yaroslavl was a Rus’ principality on the upper Volga, ruled from Yaroslavl. In 1337 Prince Vasily Davidovich was tied to Moscow by marriage to Ivan I’s daughter.
The principality later fragmented into appanages. In 1463 its last prince, Aleksandr Bryukhaty, surrendered the succession to Ivan III of Moscow; annexation was formalized by 1471.