Battle on the River Kus (1433)

The Yurievich killed this boyar, considering him to be the cause of the unfavorable turnover of affairs, and fled to Kostroma. Meanwhile, their father reconciled with Basil, yielding him to Moscow and promising not to take over his two eldest sons and not help them. In the battle that took place on the banks of the River Kusi, the Yuryevichs took the upper hand, and in 1434 the Grand Duke ruined Galich because, contrary to the treaty, Yuri's troops participated in the battle of the River Kusi. This circumstance restored the connection between father and children. After the battle in the Rostov region, Yuri occupied Moscow, but soon died (June 5, 1434), and Vasily Kosoy declared himself the Grand Duke, which he informed his younger brothers, who were then in Vladimir, in pursuit of the Grand Duke.