Who married NN?

Mieszko I of Cieszyn (Polish: Mieszko cieszyński, Czech: Měšek I. Těšínský, German: Mesko I (Teschen); also known as Mieszko I of Opole; 1252/56 – by 27 June 1315), was a Duke of Racibórz during 1282–1290 (with his brother as co-ruler) and the first Duke of Cieszyn since 1290 until his death.

He was the oldest son of Władysław, Duke of Opole-Racibórz, by his wife Euphemia, daughter of Władysław Odonic, Duke of Greater Poland.