In 1363, Đurađ declared war against the Thopias, an Albanian noble family which controlled northern Albania. The Matarangos, an Albanian noble family which controlled southern Albania, were allied with the Balšićs as a result of a quarrel with the Thopias in the south. In the spring of 1364, Karlo Thopia took Đurađ captive due to a skirmish, ending Zetan involvement in the war. Đurađ was held captive until 1366 when Republic of Ragusa mediated peace and procured his release. In 1367, Đurađ is mentioned as the "baron of maritime Serbia".