Swietopelk II, Duke of Pomerania
Swietopelk II, also Zwantepolc II or Swantopolk II, (1190/1200 – 11 January 1266), sometimes known as the Great (Polish: Świętopełk II Wielki; Kashubian: Swiãtopôłk II Wiôldżi), 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.