The Council was attended by a delegation from Moscow headed by Vasiliy Buturlin. The event was soon thereafter followed by the adoption in Moscow of the so-called that stipulated an autonomous status of the Hetmanate within the Russian state. The agreement precipitated the Russo-Polish War (1654–67). The definitive legal settlement was effected under the Eternal Peace Treaty of 1686 concluded by Russia and Poland that re-affirmed Russia's sovereignty over the lands of Zaporizhian Sich and left-bank Ukraine, as well as the city of Kiev.