Henry IV Probus

Henry IV Probus (Latin for "the Righteous") (; ) (c. 1258 – 23 June 1290) was a Duke of the Silesian territory of Wrocław (Lower Silesia) starting in 1266, and starting in 1288 High Duke of the Seniorate Province of Kraków until his death in 1290.
He was the only son of Henry III the White, Duke of Wrocław, by his first wife Judith, daughter of Duke Konrad I of Masovia.