Bolko I of Opole

Bolko I of Opole (Polish: Bolko I Opolski; before 21 October 1258 – 14 May 1313), was a Duke of Opole from 1282 (until 1284 with his brother as co-ruler), Niemodlin and Strzelce Opolskie until his death.

He was the third son of Władysław, Duke of Opole-Racibórz, by his wife Euphemia, daughter of Władysław Odonic, Duke of Greater Poland.

Around 1277 Bolko I was named co-ruler of the Duchy of Opole-Racibórz by his father, despite the fact that he was the third child. After Duke Władysław's death in 1282, Bolko I and his brother Casimir inherited Opole as co-rulers, while his other two brothers, Mieszko I and Przemysław inherited Racibórz also as co-rulers.

The common rule between Bolko I and Casimir lasted two years, until 1284, when the formal division was made of their domains. Bolko I retained the main city of Opole and Casimir received Bytom.

For unknown reasons, Bolko I chose to follow different politics than his brothers and began a close cooperation with Henry IV Probus, Duke of Wrocław. In particular, this was clearly revealed in the long-time conflict between Henry IV and Bishop Thomas II Zaremba: Bolko I actively supported Henry IV's politics (for example, in 1283 the Duke of Opole took part in the Congress of episcopal rulers in Nysa). In 1287, in an ongoing conflict with the Church's secular power, Bolko I made mediation attempts between them and Henry IV prior to a full military victory over the Duke of Wrocław.

...
Wikipedia