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

 I Mieszko
I was born about 0922 in Poznan, Poznan, Poland.  I is no longer alive.

 Prince of Poland Czcibor
Prince of Poland was born about 0928.  Prince of Poland is no longer alive.

 Prince of Poland Prokuj
Prince of Poland was born about 0933.  Prince of Poland is no longer alive.

 Adelajda "The White"
Adelajda "The was born about 0940 in Poznan, Poland.  She died in 0997 in Szekesfehervar, Fejer, Hungary.