Kurš apprecējās ar Mieszko II the Fat?

Mieszko II the Fat (Polish: Mieszko II Otyły) (c. 1220 – 22 October 1246) was a Duke of Opole-Racibórz from 1230 until his death, and Duke of Kalisz-Wieluń during 1234–1239 (with his brother as co-ruler).

He was the eldest son of Duke Casimir I of Opole by his wife Viola, probably a Bulgarian princess.