In the Middle Ages, most of the territory of the Popovo field by the Trebišnjica was part of the župa of Popovo ([pɔ̌pɔʋɔ]), and was part of the Hum province and form at least 1322 Banate of Bosnia and later Bosnian Kingdom. It encompassed most of the tribal territories of Vlasi Bobani, Vlasi Žurovci, Vlasi Hrabreni and Vlasi Burmazi. On the north it encompassed parts of the Ljubinje area, where it bordered župas Dabar, Ljubinje, Ljubomir and Dubrava. On the south it bordered with Bosansko Primorje county, and Trebinje area with eponymous župa to the east, and Zažabalje to the west. The Bosansko Primorje county was later acquired by the Republic of Ragusa from Bosnian monarch, namely kings Tvrtko II and Ostoja, through sequence of purchase arrangements and contracts.^[1]

In the area of the Popovo župa, the most notable nobility were the Nikolići, and their subjects Brlići, Ivanovići and Krasomirići. The location of the main fortress, Popovski, has not yet been determined for sure, but according to Marko Vego its most likely location is probably somewhere in the vicinity of Zavala, where the cultural center of the region was. The most important settlements in the Popovo župa were Dračevo, Žakovo, Čvaljina, Velja Međa, Ravno, Orahov Do, Sedlari, Poljice, Golubinac, Drijenjani, Grepci, Vršće, Dubljani, Površ, Kotezi and Veličani. The main occupation of the inhabitants were agriculture and animal husbandry. The vicinity of Dubrovnik facilitated the enduring orientation of domestic labor in the coastal area.^[1]

• Filipović, Milenko S.; Mićević, Ljubo (1959). Попово у Херзеговини: антропогеографски приказ/Popovo u Hercegovini. Научно друштво НР Босне и Херцеговине/Naučno društvo NR Bosne i Hercegovine.

42°52′30″N 17°59′05″E / 42.8749577°N 17.9846191°E / 42.8749577; 17.9846191

v t e Regions of Bosnia and Herzegovina
Geographical	Main Bosnia Herzegovina Regions Bosanska Krajina Podrinje a.k.a. Eastern Bosnia Posavina Semberija Srednja Bosna Sub-regions Gatačko polje Popovo Polje Polimlje Romanija Glasinac Birač Osat Ludmer Cazinska Krajina a.k.a. Western Bosnia Potkozarje Knešpolje Lijevče Prijedorsko polje Majevica
Historical	Zemlja (sub-regions) Bosna Vrhbosna Podrinje Polimlje Glasinac Donji Kraji Tropolje Završje Zapadne Strane Hum or Humska zemlja Zagorje Podgorje Bosansko Primorje Krajina Zachumlia Travunija Konavle Gornja Zeta Rudine Usora Soli Posavlje Terra Tolis Župa Mel Vidogošća Lašva Tilava Smučka Lepenica Vrhbosna Dubrovnik Kraljeva Sutjeska Olovac (Olovci) Bored (Brod) Borač Uskoplje Rama Primorje Popovo Dabar Ljubinje Ljubomir Dubrava Zažabalje Vidoši Vatnica Trusina Rudine Bileća Trebinje Vrm Dračevica Nevesinje Gacko Viševa Župa Komska Bijela Dbar Neretva Drežnica Blato Planina Dlamoč Hlivno Bistrica Duvno Veljaci Rastok Posušje Rakitno Pljeva Zagorje Kalinovik Piva Sutjeska Ostrovica Drinaljevo Bistrica Hoča Breznica Drina Goražde Gobza Brodar Međurječje Pribud Dobrun Osat Birač Srebrenica Ludmer Drametin Sapna Zaušje Soli Visori Koraj Gradačac Nenavište Modrna Tolisa (Terra Tolisa) Vrbas Glaž Hum Ukrina Usora Tešanj Luke Vrbanja Sana Zemljanik Mrin Pset Banice Unac Poljana