Bolko I of Opole, was a Duke of Opole from 1282, 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. Wikipedia
Died: May 14, 1313
Great-grandparents: Mieszko IV Tanglefoot, Kaloyan of Bulgaria, Boril of Bulgaria, and more
Parents: Vladislaus I of Opole and Euphemia of Greater Poland
Grandchildren: Vladislaus II of Opole, Bolko III of Strzelce, Henry of Opole, and more
Grandparents: Casimir I of Opole, Władysław Odonic, and Viola, Duchess of Opole
Great grandchildren: Bolko IV of Opole, Bernard of Niemodlin, Jan Kropidło, and more
Children: Bolko II of Opole, Bolesław the Elder, and Albert of Strzelce