 Grbalj akanga ari župa county yepakati peSerbia nyika yeDuklja, uye gare gare chikamu cheGreat Principality of Serbia 10911217, yepakati peMambo hweSerbia 12171346, uye Humambo hweSerbia 13461371 kusvika pakuparara kwayo. Yaivawo pfuma yaStefan Vukanović Nemanjić fl. 1252. Ruzhinji rweGrbalj rwakava rutivi rweHurumende yeZeta 1371-1378. Grbalj yaive chikamu cheSerbian Despotate kubva muna 1421-1439. Nharaunda, 1427 Code of Grbalj yakabudiswa paŽupas Podlastva Monastery. Munguva yekuchinja kwehurumende, kupandukira kwevarimi kwakatanga muGrbalj Zeta pamhenderekedzo vachipesana neKotor pamusoro pemhedzisiro yekudzorwa neVenice 1451-1452. Sechikamu chemiitiro yake yokuzvibatanidza amene neVenice, Stefanica Crnojević akadzvinyirira kupandukira, achiparadza nharaunda yacho. 