The Kingdom of Albania (Latin: Regnum Albaniae) was established by Charles of Anjou in the Albanian territory he conquered from the Despotate of Epirus in 1271. He took the title of "King of Albania" in February 1272. The kingdom extended from the region of Durrës (then known as Dyrrhachium) south along the coast to Butrint. A major attempt to advance further in direction of Constantinople, failed at the Siege of Berat (1280–1281). A Byzantine counteroffensive soon ensued, which drove the Angevins out of the interior by 1281. The Sicilian Vespers further weakened the position of Charles, and the Kingdom was soon reduced by the Epirotes to a small area around Durrës. The Angevins held out here, however, until 1368, when the city was captured by Karl Thopia. In 1392 Karl Thopia's son surrendered the city and his domains to the Republic of Venice.