Yury Dmitrievich, also known as George II of Moscow, Yury of Zvenigorod and Jurij Zwenihorodski, was the second son of Dmitri Donskoi. He was the Duke of Zvenigorod and Galich from 1389 until his death. During the reign of his brother Vasily I, he took part in the campaigns against Torzhok (1392), Zhukotin (1414), and Novgorod (1417). He was the chief orchestrator of the Muscovite Civil War against his nephew, Vasily II, in the course of which he twice took Moscow, in 1433 and 1434.

Dmitry Ivanovich Donskoy was Prince of Moscow from 1359 and Grand Prince of Vladimir from 1363 until his death. He was the heir of Ivan II.