This map will give relationships to on the overall map of this area:
These villages were inhabited by the Kopiske family and Caroline was born in Gorsin. The nearby major city it Nakel (Nakło nad Notecią in Polish). Wikipedia states Nakło was annexed by the Kingdom of Prussia during the First Partition of Poland in 1772 and known by the German name Nakel. It began to develop significantly after the completion of the Bydgoszcz Canal, which connected the Vistula with the Noteć, Warta, and Oder rivers. Caroline's father Friedrich Kopiske was born in West Prussia in 1771, married about 1790 since their first child, Johann, was born in 1791. The construction of the Bromberger canal (now Bydgoszcz canal) was key to the developent of this area. Gorsin is very close to the canal. Wikipedia states: The Bydgoszcz Canal (German: Bromberger Kanal) is a canal, 24.7 km long, between the cities of Bydgoszcz and Nakło in Poland, connecting Vistula river with Oder river, through Brda and Noteć rivers (the latter ending in the Warta river which itself ends in Oder). The level difference along the canal is regulated by 6 locks. The canal was built in 1772–1775, at the order of Frederick II, king of Prussia (after annexation of western Poland by Kingdom of Prussia in First Partition of Poland). Among the benefits of the canal project was revitalizing central Notec valley and colonizing the Brda and Notec rivers.
Caroline Kopiske was born in Gorsin, first marriage to Jakob Wendtlandt and second marriage to Ludwig Koberstein Sr.
There are two Kopiske families that were in West Prussia:
1. This is the family line that originated from the Baltic area of northern West Prussia.
My line is given here in FamilySearch as a decendancy. Here is an Ancestry family page for Friedrich Kopiske. The map above show the primary area of Caroline Kopiske that had second marriage to Ludwig Koberstein Sr. The location on the Baltic is hown in the map below.
2. The other family line of Friedrich KOPISKE is said by oral tradition to descend originally from industrialists living in the Ober/Obra River valley of Silesia in southwestern Poland (near the Czech border), and therefore may not be related to the KOPITZKI line from the Baltic area of northern Poland, even though both lines settled in the same Winnebago/Waushara/Waupaca Counties area of central Wisconsin.
The other line is given here in FamilySearch as a decendancy. Here is an Ancestry pedigree for this family. But the odd fact is that I share DNA (15cM 5th - 8th cousin) with a person who claims this ancestry, something is wrong. Search for Kopiske in Ancestry matches and see M.V. match.