Swietopelk II, also Zwantepolc II or Swantopolk II, sometimes known as the Great, was the ruling Duke of Pomerelia-Gdańsk from 1215 until his death. He was the first member of the Samborides to style himself dux from 1227 onwards. Wikipedia
Died: January 11, 1266
Children: Mestwin II, Duke of Pomerania, Wartislaw II of Gdańsk, and Euphemia of Pomerania
Grandchild: Erik Knudsen of Sønderhalland
Grandparent: Sobieslaw I, Duke of Pomerania
Partner: Euphrosyne and Ermengarde von Schwerin, Heiress of Schlawe
Parents: Mestwin I, Duke of Pomerania