Bolko II of Ziębice

Bolko II of Ziębice (Polish: Bolko II Ziębicki) (1 February 1300 – 11 June 1341) was a Duke of Jawor-Lwówek-Świdnica-Ziębice in Poland from 1301 to 1312 (with his brothers as co-rulers), of Świdnica-Ziębice from 1312 to 1322 (with his brother as co-ruler), and sole Duke of Ziębice from 1322 until his death.

He was the fourth son of Bolko I the Strict, Duke of Jawor-Lwówek-Świdnica-Ziębice, by his wife Beatrix, daughter of Otto V the Long, Margrave of Brandenburg-Salzwedel. He was named after his eldest brother Bolko, who died on 30 January 1300, just two days before his birth.

At the time of his father's death in 1301, Bolko II was not quite two years old. Therefore, he and his siblings were placed under the care of their mother and the guardianship of their maternal uncle, Herman, Margrave of Brandenburg-Salzwedel, until 1305, when the eldest living brother Bernard assumed the government and the tutelage of his brothers. Out of fear that the duchy would be fragmented, Bolko II was initially destined for a career in the Church. Bolko II strongly resisted these plans, and in 1322 received the district of Ziębice as an independent duchy from Bernard.

In 1322, Bolko II, alongside Bernard, took part with Teutonic Knights in the expedition against Lithuania.

On the threshold of his reign, Bolko II fell into conflict with the Church. The continued financial difficulties of the Duke lead him to invade and steal goods from the monasteries of Henryków () and Kamieniec Ząbkowicki. In 1329, the Duke attacked the suite of the Papal legate Pietro di Alverni. This action motivated the intervention of the Kings of Poland and Bohemia, with the support of almost all of the Silesian dukes. Defeated, Bolko II was excommunicated by the Bishop of Wrocław, Nanker. The excommunication was only removed after Bolko II paid large sums to both the Papal legate and the monasteries as compensation.