The Cossack Hetmanate, officially the Zaporozhian Host, was a stratocratic Zaporozhian Cossack state established by Registered Cossacks in Dnieper Ukraine. Its territory was located mostly in the region of Central Ukraine, as well as in parts of Belarus and southwestern Russia, and at different points it also incorporated the territories of Zaporozhian Sich to the south. The Hetmanate existed between 1648 and 1764, although its administrative-judicial system persisted until 1781. In different periods it was a vassal of the Polish–Lithuanian Commonwealth, the Ottoman Empire and the Russian Empire.