information:classification, quality:correction
Social and tribal structure

The Pannonian Basin was the centre of the Avar power base. The Avars resettled captives from the peripheries of their empire to more central regions. Avar material culture is found south to Macedonia. However, to the east of the Carpathians, there are next to no Avar archaeological finds, suggesting that they lived mainly in the western Balkans. Scholars propose that a highly structured and hierarchical Avar society existed, having complex interactions with other "barbarian" groups. The khagan was the paramount figure, surrounded by a minority of nomadic aristocracy.

A few exceptionally rich burials have been uncovered, confirming that power was limited to the khagan and a close-knit class of "elite warriors". In addition to hoards of gold coins that accompanied the burials, the men were often buried with symbols of rank, such as decorated belts, weapons, stirrups resembling those found in central Asia, as well as their horse. The Avar army was composed from numerous other groups: Slavic, Gepidic and Bulgar military units. There also appeared to have existed semi-independent "client" (predominantly Slavic) tribes which served strategic roles, such as engaging in diversionary attacks and guarding the Avars' western borders abutting the Frankish Empire.

Initially, the Avars and their subjects lived separately, except for Slavic and Germanic women who married Avar men. Eventually, the Germanic and Slavic peoples were included in the Avaric social order and culture, which was Persian-Byzantine in fashion. Scholars have identified a fused Avar-Slavic culture, characterized by ornaments such as half-moon-shaped earrings, Byzantine-styled buckles, beads, and bracelets with horn-shaped ends. Paul Fouracre notes, "here appears in the seventh century a mixed Slavic-Avar material culture, interpreted as peaceful and harmonious relationships between Avar warriors and Slavic peasants. It is thought possible that at least some of the leaders of the Slavic tribes could have become part of the Avar aristocracy". Apart from the assimilated Gepids, a few graves of Carolingian peoples have been found in the Avar lands. They perhaps served as mercenaries.