Solidus - Arcadius CONCORDIA AVGGG, Thessalonica

Thessalonica was one of the most strategically critical mints in the late Roman world, and the CONCORDIA AVGGG reverse type — invoking harmony among three augusti — was issued at a moment when that harmony was entirely fictional. By 402-403, Arcadius in Constantinople and his younger brother Honorius in the West were effectively governed by rival regents, Eutropius having recently fallen and Stilicho holding real power in the West. The plural "AVGGG" notation points to a third augustus in the collegiate formula, almost certainly the infant Theodosius II.