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

 Dubrawka of Bohemia
Dubrawka of was born about 0937 in Praha, Czechoslovakia.  She died in 0977.

 I Boleslaw
I was born in 0967.  He died at the age of 58 on July 17th, 1025.