Pomerania-Stolp

Pomerania-Stolp (German: (Teil-)Herzogtum Pommern-Stolp, Polish: księstwo słupskie, "Duchy of Słupsk") was one of the partitions of the Duchy of Pomerania (German: Herzogtum Pommern). Centered in Słupsk, it was created from another partition of the Duchy of Pomerania, Pomerania-Wolgast, to satisfy Bogislaw V, Duke of Pomerania in 1368, and existed until 1459, when it was inherited by Eric II of Pomerania-Wolgast. In 1474, it was merged to the partition of Bogislaw X, Duke of Pomerania, who four years later became the sole duke of Pomerania.

The Duchy of Pomerania was partitioned several times to satisfy the claims of the male members of the ruling House of Pomerania dynasty. The partitions were named after the ducal residences: Pomerania-Barth, -Demmin, -Rügenwalde, -Stettin, -Stolp, and -Wolgast. None of the partitions had a hereditary character, the members of the House of Pomerania inherited the duchy in common. The duchy thus continued to exist as a whole despite its division.

After the death of Barnim IV of Pomerania-Wolgast in 1366, an armed conflict arose when Barnim's brother Bogislaw V refused to share his power with Barnim's sons, Wartislaw VI and Bogislaw VI, and his other brother, Wartislaw V, who in turn allied with Mecklenburg to enforce their claims. On May 25, 1368, a compromise was negotiated in Anklam, which was made a formal treaty on June 8, 1372 in Stargard, and resulted in a partition of Pomerania-Wolgast.

...
Wikipedia