The genetic portrait emerging from 179 Avar‑period individuals from Hungary and Croatia reveals a heterogeneous population shaped by admixture. Y‑chromosome counts show diversity among paternal lines: haplogroup J is most frequent in these samples (27 individuals), followed by R (18), I (12), E (7), and N (5). On the maternal side, mtDNA is dominated by typically European lineages, with H (37) and U (18) most common, alongside J (14), T (9), and D (8).
These patterns suggest a complex demographic history. The relative abundance of mtDNA H and U — frequent in European populations — indicates substantial local maternal ancestry, whereas the presence of Y‑haplogroups such as J and N points to paternal inputs from West Asian and steppe/Inner Asian sources, respectively. Haplogroup N is often associated with more northeasterly or Siberian connections, but its low count here (n=5) means such signals are present yet limited. Similarly, the notable count of J (n=27) among males may reflect male‑mediated gene flow from regions to the south or east of the Carpathian Basin.
With 179 genomes, statistical inference is stronger than for small case series, allowing population‑level statements about mixture and substructure; however, archaeological sampling bias (cemetery selection, chronological clustering across Early, Middle, and Late Avar phases) necessitates caution. Genetic data therefore complements material culture: together they indicate an Avar milieu forged by steppe immigration, local incorporation, and ongoing exchange across Eurasia.