Kazimierz I Prince Of Mazovia
Kazimierz I Prince Of was born in 1211 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.  He died at the age of 56 on December 14th, 1267 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.

 Konstancja Princess Of Great Poland Silesia Breslau
Konstancja Princess Of was born in 1218 in Legnica,Wroclaw,Poland,Poland.  She died at the age of 39 on February 21st, 1257 in Legnica,Wroclaw,Poland,Poland.

 Leszek (The Black) Prince Of Krakow
Leszek (The Black) Prince Of was born in 1240 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.  He died at the age of 48 on September 30th, 1288 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.

 Ziemomysl Prince Of Kujavia
Ziemomysl Prince Of was born in 1241 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.  He died at the age of 46 on December 24th, 1287 in Dobrzyn Nad W,Bydgoszcz,Poland,Poland.

 Adelajda Princess Of Kujavia
Adelajda Princess Of was born in 1248 in Dobrzyn Nad W,Bydgsz,Poland,Poland.  She died at the age of 43 on December 8th, 1291 in Dobrzyn Nad W,Bydgsz,Poland,Poland.