What is "pomerania-stolp"

Pomerania-Stolp was one of the partitions of the Duchy of Pomerania . 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.