It was established that she was born shortly before 7 April 1249 from the second marriage of the Kuyavian Duke with Constance , daughter of Henry II the Pious , Duke of Wrocław . O.
Head entity: henry ii the pious Q53446 25 26 27 28
Tail entity: constance Q5163600 21
Relation (head \u2192 tail): P22
Inverse relation (tail \u2192 head): P40