court. Charles signed a treaty with them and was proclaimed King of Albania "by common consent of the bishops, counts, barons, soldiers and citizens" promising to protect them and to honor the privileges they had from Byzantine Empire. The treaty declared the union between the Kingdom of Albania (Latin: Regnum Albanie) with the Kingdom of Sicily under King Charles of Anjou (Carolus I, dei gratia rex Siciliae et Albaniae). He appointed Gazo Chinard as his Vicar-General and hoped to take up his expedition against Constantinople again. Throughout 1272 and 1273 he sent huge provisions to the towns of Durrës and Vlorë. This alarmed the Byzantine Emperor, Michael VIII Palaiologos, who began sending letters to local Albanian nobles, trying to convince them to stop their support for Charles of Anjou and to switch sides. The Albanian nobles sent those letter to Charles who praised them for their loyalty. Then, Michael VIII's hopes of stopping the advance of Charles were laid on the influence of Pope Gregory X. Gregory had high hopes of reconciling Europe, unifying the Greek and Latin churches, and launching a new crusade: to that end, he announced the Council of Lyon, to be held in 1274, and worked to arrange the election of an Emperor, so he ordered Charles to stop his operations. Charles of Anjou imposed a military rule on Kingdom of Albania. The autonomy and privileges promised in the treaty were "de facto" abolished and new taxes were imposed. Lands were confiscated in favor of Anjou nobles and Albanian nobles were excluded from their governmental tasks. In an attempt to enforce his rule and local loyalty, Charles I, took as hostages the sons of local noblemen. This created a general discontent in the country and several Albanian noblemen began contacting Byzantine Emperor Michael VIII who promised them, to acknowledge their old privileges. Byzantine offensive As Charles I's intentions for a new offensive were stopped by the Pope and there was a general discontent within Albania, Michael VIII caught the occasion and began a campaign in Albania in late 1274. Byzantine forces helped by local Albanian noblemen captured the important city of Berat and later on Butrint. On November 1274, the local governor reported to Charles I that the Albanian and Byzantine forces had besieged Durrës. The Byzantine offensive continued and captured the port-city of Spinarizza. Thus Durrës alongside the Krujë and Vlora regions became the only