Duklja

 archaeological site, fortress, interesting place

Duklja or Diokletija (Cyrillic: Дукља or Диоклетија; Latin: Doclea or Diocleia; Greek: Διοκλεία, Diokleiaa) was a South Slavic medieval state with hereditary lands roughly encompassing the territories of present-day southeastern Montenegro, from Kotor on the west to the river Bojana on the east and to the sources of Zeta and Morača rivers on the north. Duklja was at first a vassal of the Eastern Roman Empire until it became a Županate of Rascia in the 9th century, under the House of Vlastimirović. It emerged as the most powerful principality and briefly became the seat of the Serbian state in the 11th century, ruled by the House of Vojislavljević (cadet branch of the Vlastimirović). In 1148, however, Duklja was reinstated as a Županate of Rascia and is since referred to as Zeta, and remained so until the fall of the Serbian Empire, when it subsequently becomes semi-independent in 1362 as the Lordship of Zeta, under the House of Balšić.