Yazhelbitsy is a village (selo) in Valdaysky District of Novgorod Oblast, Russia, located on the M 10 highway 75 mi south-east of Veliky Novgorod. It was the site of the 1456 Treaty of Yazhelbitsy between Grand Prince Vasily II (r. 1425–1462) and Novgorod the Great, in which Novgorod's political independence was strictly curtailed. Failure to abide by the treaty led to Novgorod's defeat at Shelon River in 1471 and its final subjugation by Moscow in 1478.

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