9. Agnieszka (Agnes) * c.1340 + after 6 February 1371
The daughter of Kazimierz I and Eufemia of Mazovia. Sometime between 1352 and 1354 she married Konrad II of Oleśnica, after obtaining a dispensation from Pope Innocent VI necessary because of consanguinity. However, the marriage did not prevent Konrad from entering a bitter conflict over the Duchy of Bytom with Agnieszka's brother, Prince Przemysław Noszak.
(K. Jasiński, Rodowód, vol. 3, pp. 144-145, I. Panic, Spór, pp. 27-47)