Wartislaw IV, Duke of Pomerania-Wolgast

Wartislaw IV (before 1290–1326), son of Bogislaw IV, succeeded as duke of Pomerania-Wolgast in 1309. In 1317 Waldemar of Brandenburg enfeoffed him with Schlawe and Stolp, and after Waldemar's death in 1319 he guarded the heir Henry II and sought to hold Brandenburg, until Emperor Louis IV granted it to his son in 1323.

A 1321 inheritance treaty with his uncle Wizlaw III of Rügen brought the principality to Wolgast in 1325, sparking a war with Mecklenburg that ended in 1328, after Wartislaw's death.