[2] She was the sister of Margaret of Hungary and Kinga of Poland (Cunegunda).

[3][4] They had three daughters: During the time of her marriage, she was noted for her great services to the poor and needy of the country, as well as being a major benefactor of the monasteries, friaries and hospitals connected to them.

Her husband gave her so much support in her charities that he earned the nickname "the Pious".

Forced to relocate due to armed conflict in the region, Yolanda founded a new monastery in Gniezno.

[7] She was persuaded to become abbess of the community of nuns shortly before her death.