Background
He was the second son of Duke Bolko I of Opole by his wife Agnes, probably a daughter of Margrave Otto III of Brandenburg. At the time of his father"s death in 1313, Bolko II and his youngest brother Albert inherited the Duchy of Opole as co-rulers. But because at that time both were probably minors, they were placed under the care of their older brother, Bolesław the Elder.
Career
However, this alliance was short-lived: on 5 April 1327 in Wrocław, he paid homage to King John of Bohemia. He was the last Silesian Duke who became a vassal of Bohemia. During his rule in Opole, Bolko II focused on the economical development of his domains.
He introduced German laws (see Magdeburg Law) in the villages.
Also, he supported trade and took care of the state of roads, in order to maintain the safety of travelers. The good economy of his Duchy was used by Bolko II to obtain more lands: in 1351 he bought the towns of Byczyna and Kluczbork from Duke Wenceslaus I of Legnica and the district of Sławięcice from Duke Bolesław of Bytom.
Bolko II was particularly attached to the Franciscan monastery of Opole. When Bolko II died on 21 June 1356, he was buried there.