The Dassaretae are a tribe who settled in what would become Dassaretum Province, Empire of Makhaira. They are first mentioned in the historical record during the second century, but they were already established there even at that time. Their descendants remain in that province and are one of two primary tribes in the area, the other being the Enchelei tribe, who settled in the region in the fourth century. Its current zupan is Vukasin Mrnjavcevic.
From the Books: "Achrida is technically a part of the Empire, the capital of the province of Dassaretum. But that is only part of the truth, as the descendants of the Dassaretae compete with the descendants of the Enchelei to rule here. Their governors, called zupans, know that they are the true rulers here. The zupans squabble against each other. The Dassaretae are led by the Mrnjavcevic family, and our zupan is Vukasin. The Gropa family leads the Enchelei, and Pal is their zupan." - ALMD p. 58