KAZIMIERZ I PRINCE de KUJAVIA
KAZIMIERZ I PRINCE was born about 1211.¹   He died on December 14th, 1267.¹ 

 EUFROZYNA OPPELN RATIBOR
EUFROZYNA OPPELN was born about 1211.¹   She died after November 4th, 1291.¹ 

 WLADISLAW I KING de POLAND
WLADISLAW I KING was born about 1260.^1 1