Moscow Articles of 1665

The Moscow Articles of 1665 was an agreement signed on 11 October 1665 between the Cossack Hetmanate Hetman Ivan Briukhovetsky and the Tsardom of Russia.

The treaty put Left-Bank Ukraine under the control of the Russian Tsar. The terms of the agreements were:

This agreement was largely viewed in Ukraine unfavorably as treason and caused massive uproar. It was one of the reasons for Hetman Briukhovetsky's murder by a Cossack mob.

...
Wikipedia