The first regimental districts were confirmed by the Treaty of Kurukove in 1625, among which were Bila Tserkva Regiment, Kaniv Regiment, Korsun Regiment, Kiev Regiment, Pereyaslav Regiment, Cherkasy Regiment. All of them were situated within the Kiev Voivodship. According to the Treaty of Zboriv, there were 23 regiments. In 1667 the signing of Truce of Andrusovo between the Muscovy and Polish–Lithuanian Commonwealth secured 10 regiments of the Left-bank Ukraine for Muscovy, including Kiev, while the other six stayed at the Right-bank Ukraine as part of the Polish–Lithuanian Commonwealth.