Greater Poland Voivodeship, also known as Wielkopolska Voivodeship, Wielkopolska Province, or Greater Poland Province, is a voivodeship, or province, in west-central Poland. It was created on 1 January 1999 out of the former Poznań, Kalisz, Konin, Piła and Leszno Voivodeships, pursuant to the Polish local government reforms adopted in 1998. The province is named after the region called Greater Poland or Wielkopolska . The modern province includes most of this historic region, except for some western parts.
Greater Poland Voivodeship is second in area and third in population among Poland's sixteen voivodeships, with an area of 29,826 square kilometres and a population of close to 3.5 million. Its capital city is Poznań; other important cities include Kalisz, Konin, Piła, Ostrów Wielkopolski, Gniezno and Leszno.
Wikipedia https://en.wikipedia.org/wiki/Greater_Poland_Voivodeship
Coordinates 52°24'29.759" N 16°56'0.672" E