Prince Ziemomysil of Poland
Ziemomysil was born about 0892 in Poznan, Poland.  He died before 0964.

 Gorka
Gorka was born in Poznan, Poznanskiego, Poland.

 Prince Mieczislaw I
Mieczislaw was born about 0922.  He died on May 25th, 0992.

 Prince Miesko I
Miesko was born about 0922 in Poznan, Poland.  He died on May 25th, 0992.

 Princess Adelajda ("the White")
Adelajda, known as "the White", was born in Poznan, Poznan, Poland.  She died in 0997.