Margarete|Margareta von Mecklenburg (von Rostock) - Aft 23 Oct 1274 (1232–1274) Parents Christina of Sweden Henry Borwin II, Lord of Mecklenburg Children Henry II, Count of Schwerin Helmold III, Count of Schwerin Niklot I, Count of Schwerin Johannes von Schwerin Gunzelin IV of Schwerin Siblings Nicholas I of Werle Matilda of Mecklenburg Henry Borwin III, Lord of Rostock John I Pribislaw I Partners Gunzelin III, Count of Schwerin