Novgorod Governorate
The areas south of Lake Lacha belonged to Kirillovsky Uyezd of Novgorod Governorate. In 1918, five uyezds of Novgorod Governorate, including Kirillovsky Uyezd, were split off to form Cherepovets Governorate. In 1919, these areas were transferred to Kargopolsky Uyezd.