 In 1727, Novgorod Governorate split off.The eastern part of the area was a part of Novgorodsky Uyezd of Novgorod Governorate.The western part remained in Saint Petersburg Governorate and later was split between Tsarskoselsky and Sankt-Peterburgsky Uyezds (renamed in 1913 Petrogradsky Uyezd and in 1924 Leningradsky Uyezd; the governorate was accordingly renamed Petrogradsky in 1913 and Leningradsky in 1924).