 The southern part remained in Poland until the First Partition of Poland in 1772.In the course of the administrative reform carried out in 1708 by Peter the Great, the north of the area (the right bank of the Western Dvina) was included into Ingermanland Governorate (known since 1710 as Saint Petersburg Governorate).In 1727, separate Novgorod Governorate was split off, and in 1772, Pskov Governorate (which between 1777 and 1796 existed as Pskov Viceroyalty) was established.