 The voivodeship comprises most of Pomerelia (the easternmost part of historical Pomerania), as well as an area east of the Vistula River.The western part of the province, around Słupsk, belonged historically to Farther Pomerania, while Pomerelia and the eastern bank of the Vistula belonged to the historical region of Prussia.The central parts of the province are also known as Kashubia, named after the Kashubian minority.