Between the 13th and 14th centuries, the borders of the diocese reached the Danube. Under the diocesan jurisdiction were: Prizren, Janjevo, Novo Brdo, Novi Pazar, Brskovo, Golubac, Brvenik, Plana, Mačva, Trepča, Trgovište and Belgrade. In the 16th century, Tripo Bisanti, Bishop of Cattaro, signed himself as the Bishop of Serbia (""Totius Serviae""). In 1880, the parishes of Spič, Šušanj and Brca, which had originally belonged to the Archdiocese of Antivari, was transferred to the Diocese of Cattaro by the decision of the Sacred Congregation for the Propagation of the Faith.