Illyrian Adriatic Networks & Hill-Fort Kingdoms

Pre-Roman tribal Europe — Celts, Illyrians, Thracians, hillfort and chiefdom cultures.

1 chapter

9 - 476

After the Great Illyrian Revolt was suppressed in 9 AD, Rome reorganized the eastern Adriatic hinterland into the province of Dalmatia, introducing a villa-based agricultural economy along the Neretva valley. The villa rustica at Mogorjelo near Čapljina — one of the best-preserved late-Roman rural estates in the Balkans — shows how imperial estates functioned as economic engines, with fortified perimeter walls, basilicas added in the 5th century, and Carolingian-era burials marking the long transition out of Roman order. Walk the ruined perimeter of Mogorjelo's 4th-century complex and see the layers of rebuilding that carried the site from Roman prosperity through Visigoth destruction to early Christian repurposing. At Delminium (Tomislavgrad), the Roman forum beneath the present basilica and votive altars to Diana and Silvanus reveal how Roman religion and infrastructure reshaped the Illyrian landscape.

476 - 1326

As Roman authority collapsed, South-Slavic tribes settled the Neretva and Sava valleys, establishing the principality of Hum (Humska zemlja) that would later become Herzegovina. This is a lower-resolution era for visitors — few standing structures survive exclusively from this period — but the stećci, massive medieval tombstones carved with crosses, shields, and enigmatic symbols, are the most visible legacy. The Radimlja necropolis near Stolac contains 133 carved stones, many bearing inscriptions that name the families who once ruled this land. The fortress site at Blagaj, mentioned by Byzantine emperor Constantine Porphyrogenitus in the 10th century, guards settlement layers stretching back to prehistory; the pre-Kosača medieval traces beneath the later fortress reveal where Hum's early princes held court. Vjetrenica Cave near Ravno, with its ancient petroglyphs and the wind that gave it its name, served as a landmark across all eras — a natural shrine in the karst landscape that Slavic settlers wove into their own worldview.

1326 - 1481

When Ban Stjepan II Kotromanić annexed Hum to the Bosnian state in 1326, the Kosača family rose as the region's paramount lords, eventually producing a title — Herceg (Duke) — that gave Herzegovina its name. Stjepan Vukčić Kosača declared himself Herceg of Hum and the Coast in 1448, and his seat at Blagaj Fortress (thereafter called Stjepan-grad) became the political heart of a quasi-independent duchy. Ljubuški Fortress, built by the same duke on a hill above the Ljubuški polje, guarded the western approaches to his domain. Počitelj, founded by King Tvrtko I in 1383, controlled the merchant route down the Neretva to the Adriatic. Queen Katarina Kosača, daughter of the Herceg and last queen of Bosnia, became a Catholic symbol of the region's lost independence — venerated by Herzegovinian Franciscans as a blessed soul after her death in Roman exile in 1478. These fortresses and the stećci that dot the landscape around them let you read the moment when Herzegovina became Herzegovina.

1481 - 1878

The Ottoman conquest of Herzegovina, completed by 1481, transformed the region into a frontier sanjak where Islamic governance coexisted with Catholic communities sustained by Franciscan friars under Ottoman protection. The Stari Most (Old Bridge), built in 1566 by Mimar Hayruddin under Sultan Suleiman the Magnificent, became the defining architectural monument of Ottoman Mostar and the symbolic crossing point of the Neretva. At Blagaj, a tekke (dervish monastery) built around 1520 at the spectacular Buna river spring hosted Sufi zikr ceremonies that continue three nights weekly to this day. Počitelj expanded under Ottoman rule with a hammam, mosque, and the Gavran-captain tower overlooking the Neretva. The Franciscans, operating under a 15th-century Ottoman edict (ahdnama), became the custodians of Catholic identity — preserving the faith in an era when conversion to Islam carried social and economic advantages. The survival of Catholic parish life under Ottoman rule is the foundation on which all later Croat-Herzegovinian festival traditions rest.