Question: What is the date of death of Elisabeth Of Wrocław's father?
Sentence (from "Henry II the Pious"): the Pious  (1196 – 9 April 1241), of the Silesian line of the Piast dynasty, was Duke of Silesia at Wrocław and Duke of Kraków and thus High Duke of all Poland as well as Duke of Southern Greater Poland from 1238 until his death.
Relevant evidence: Yes