Bogislaw IV, Duke of Pomerania

Bogislaw IV (c. 1255–1309), of the Griffin dynasty, was the eldest son of Barnim I of Pomerania and served as co-ruler from 1276 before succeeding as duke in 1278. While his half-brothers were underage he ruled alone, and in the early 1280s intervened in the war over Brandenburg. After Barnim II died in 1295, Pomerania was partitioned and Bogislaw took Wolgast while Otto I received Szczecin.

He later allied with Władysław the Short of Poland and fought in the Brandenburg War. He was buried in Stettin's Marienkirche and succeeded by his son Wartislaw IV.