Roman client kingdoms in Britain

The Atrebates (Gaulish: *Atrebatis, 'dwellers, land-owners, possessors of the soil') were a Belgic tribe of the Iron Age and the Roman period, originally dwelling in the Artois region.

The Trinovantes or Trinobantes were one of the Celtic tribes of Pre-Roman Britain. Their territory was on the north side of the Thames estuary in current Essex, Hertfordshire and Suffolk, and included lands now located in Greater London. They were bordered to the north by the Iceni, and to the west by the Catuvellauni. Their name possibly derives from the Celtic intensive prefix "tri-" and a second element which was either "nowio" – new, so meaning "very new" in the sense of "newcomers", but possibly with an applied sense of vigor or liveliness ultimately meaning "the very vigorous people". Th

thumb|330px|Catuvellauni, Tasciovanus, "Hidden Faces" gold [[stater. Obv: stylized crescents and wreaths with hidden faces. Rev: Celtic warrior on horse right, carrying carnyx.]] The Catuvellauni (Common Brittonic: *Catu-wellaunī, "war-chiefs") were a Celtic tribe or state of southeastern Britain before the Roman conquest, attested by inscriptions into the 4th century.

The Regni (also the Regini or the Regnenses) were a Celtic tribe, or group of tribes, living in Britain prior to the Roman Conquest, and later a civitas or canton of Roman Britain. They lived in what is now Sussex, as well as small parts of Hampshire, Surrey and Kent, with their tribal heartland at Noviomagus Reginorum (modern Chichester).

right|280px|Peoples of northern Britain according to Ptolemy's 2nd-century Geography

former kingdoms