Events Europe January 11 — Vladislav II becomes king of Bohemia. November 29 — Eleanor of Aquitaine arrives in Salisbury, Wiltshire on royal business. The Diet of Roncaglia is convoked by Frederick Barbarossa. The University of Bologna is granted its first privileges by Emperor Frederick Barbarossa. The Diocese of Derry is erected in Ireland. British Pound Sterling (currency) is introduced. Margrave Ottokar III of Styria inherits the County of Pitten. Asia Emperor Nij�… (More on 1158)