Dmitriy Yurievich Shemyaka was the second son of Yury of Zvenigorod by Anastasia of Smolensk and grandson of Dmitri Donskoi. His hereditary patrimony was the rich northern town Galich-Mersky. When his brother prince Vasily I of Moscow died in 1425, he and his 10-year-old nephew Vasily started fighting over the right to the throne, causing the Muscovite War of Succession (1425–1453). Intermittently, Shemyaka managed to be recognised twice as Prince of Moscow.
Prince Dimitry Yurievich Shemyaka. Paradnye Seni (Principal Portal) of State Historical Museum (Moscow), frescoes by Foma Gavrilovich Toropov's artel, 1883.
Meeting of Shemyaka with Vasily II after the Latter's Blinding.
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.
The Nativity Cathedral built by Yury in Zvenigorod ca. 1405.