Henry IV nicknamed Probus (Latin for righteous), (Polish: Henryk Probus, German: Heinrich von Breslau; ; c. 1258 – 1290), was a Duke of the Silesian territory of Wrocław c. 1270, and senior prince of Poland from 1288 until his death in 1290. His cousin Venceslaus II of Bohemia inherited his territory upon his death.