 1231 – d. bef.27 May 1261), probably a daughter of Nicholas I, Lord of Werle and member of the House of Mecklenburg, although other sources identified her as a daughter of Otto "the Child", Duke of Brunswick-Lüneburg.Historian Robert Klempin identified her as the widow of Vitslav I, Prince of Rügen, but this seems very doubtful from a chronological view.