Germanic people of the Rhine delta (Batavia, modern Netherlands), described by Tacitus as an offshoot of the Chatti who settled the area c. 50-15 BC. Famous as elite Roman auxiliary cavalry, the Batavi led a major revolt against Rome in 69-70 AD (the Batavian Revolt, under Gaius Julius Civilis) before being brought back under Roman authority.
Remained a distinguished Roman auxiliary-supplying people for centuries afterward; gradually merged into the emerging Frankish confederation in late antiquity, though a precise dissolution date is not confirmed in the sources checked here.
Focused archaeological/historical study of the Batavians on the Roman Rhine frontier.
Tacitus (Germania and Histories) is the primary ancient source on the Batavi and their revolt.