Dalmatian Echoes: Trogir in the Roman Age

Trogir-Dragulin sits on the Dalmatian shore where stone streets once echoed with Latin, Greek and local tongues. Archaeological data indicates that by the early Imperial period (1–200 CE) coastal settlements along the eastern Adriatic were thoroughly integrated into Roman administrative and maritime networks. Graves and habitation layers at Trogir-Dragulin reflect a community living at the threshold of Mediterranean trade: amphora fragments, imported ceramics nearby, and urbanizing architecture point to sustained contact with Italy and the wider Mediterranean.

Genetically, the six sampled individuals provide a cautious glimpse into origins. Limited evidence suggests a predominantly local, Balkan-rooted maternal pool (haplogroups H and T), while the single observed Y-haplogroup E could reflect either continuity with regional male lineages or male-mediated movement from other Mediterranean zones. Given the small sample size, any reconstruction of migration or founding events remains tentative. The archaeological and genetic signatures together paint a picture of a town woven into imperial networks yet retaining local threads — a place where lifetime journeys and inherited ancestries overlapped.

Uncertainties: with only six genomes, distinguishing long-term regional continuity from episodic immigration (soldiers, merchants, sailors) is not yet possible; further sampling across Dalmatia is needed.

Six ancient genomes from Trogir-Dragulin (1–200 CE) yield a tentative genetic portrait of a small Roman-era Dalmatian community. Maternal lineages are dominated by H-related haplogroups (H+ in two samples, and H in one), along with T and T2b — mtDNA types common across Europe and the Near East and frequently connected to long-standing post-Neolithic populations in the Balkans. These maternal signatures align with archaeological evidence for local continuity in the population.

Paternal data are sparse: a single Y-chromosome assigned to haplogroup E was observed. Haplogroup E has a wide geographic distribution in the Mediterranean and parts of the Balkans; in this context it may represent either local male continuity or the arrival of individuals linked to broader Mediterranean mobility (merchants, sailors, military personnel). One mtDNA sample was assigned to C1, a lineage that is rare in ancient European datasets and more typically associated with northern/central Eurasian and Native American branches. The presence of C1 in a single individual is striking but must be approached cautiously: possibilities include rare long-range ancestry, post-mortem contamination, or misassignment due to limited coverage.

Because the dataset contains fewer than 10 samples, all genetic interpretations are preliminary. Archaeology and aDNA together suggest a community shaped primarily by regional Balkan ancestry, punctuated by instances of wider Mediterranean or Eurasian contact. Expanded sampling across time and sites is required to clarify patterns of continuity, mobility, and social structure.