Henryk IV Probus

Henry Probus (Latin for the Righteous; Polish: Henryk IV Probus or Prawy; German: Heinrich IV. der Gerechte; c. 1258 – 23 June 1290) 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.

Born to Henry III the White and Judith of Masovia, Henry inherited his duchy at a young age following his father’s death. During his minority, he was placed under the guardianship of King Ottokar II of Bohemia, an arrangement that significantly shaped Henry's early political orientation, strengthened his position among the Silesian Piasts and drew him into wider regional power struggles. The Duchy of Silesia was governed by regents comprising Silesian nobles and ecclesiastical figures and upon reaching majority in the early 1270s, Henry assumed direct rule. He sought to reduce the influence of the nobility and the Church in secular governance, aiming to centralise power in the ducal court. However, the dispute with Bishop Thomas II Zaremba, rooted in questions of jurisdiction and property rights, escalated into open confrontation and resulted in Henry's excommunication.