Henryk IV Probus was a member of the Silesian branch of the royal Polish Piast dynasty. He was Duke of Silesia at Wrocław from 1266 as well as the ruler of the Seniorate Province of Kraków and High Duke of Poland from 1288 until his death in 1290.... Wikipedia
Born: 1258
Died: June 23, 1290 (age 32 years), Wrocław, Poland
Parents: Henry III the White and Judith of Masovia
Spouse: Matilda of Brandenburg, Duchess of Poland (m. 1288–1290) and Constance, Duchess of Wodzisław (m. 1280–1287)