In the Middle Ages, the territory of the Popovo field by the Trebišnjica, the northern part of the Ljubinje area, and the southern part of Bobani, was part of the župa (county) of Popovo ([pɔ̌pɔʋɔ]) which was located in the Hum province. The county bordered with Primorje county to the south, Trebinje area to the east, Dabar and Dubrave counties to the north, and Žaba county to the west. The Primorje county was later occupied by the Republic of Ragusa.