Duke Mestwin I of Eastern Pomerania
Mestwin was born about 1160 in Gdansk, Poland.  He died after 1200 in Kolster, Oliva, Westpreussen, Prussia.

 Princess Zwinislawa of Poland
Zwinislawa was born about 1166 in Poznan, Poland.  She died on September 4th, 1240.

 Princess Jadwiga of Eastern Pomerania
Jadwiga was born about 1194 in Gdansk, Poland.