Sambor II of Eastern Pomerania
Sambor II of Eastern was born about 1204 in Gdansk, Poland.  He died on November 13th, 1278.

 Mechtild Von Mecklenburg
Mechtild was born about 1200 in Schwerin, Germany.  She died after July 10th, 1258.

 Margarethe of Eastern Pomerania
Margarethe of Eastern was born about 1233 in Lubiszewo, Gdansk, Poland.  She died on December 2nd, 1283.