The Celtic Tribes of Britain

The Trinovantes

"Farther eastward [from the Catuvellauni] and near
the Thames Estuary are the Trinovantes and the town
Camulodunum 21*00 55°00."

The Trinovantes tribe inhabited the modern county of Essex and much of southern Suffolk. The first Roman Colonia in Britain was established within the tribal territories at Colchester in AD49. They were bordered to the north by the Iceni, to the south by the Cantiaci and to the west by the Catuvellauni. The tribal name Trinovantes possibly means 'The Vigorous People'.

The Civitas Trinovantum
The Principal Tribal Centre

Caesaromagvs (Widford, nr. Chelmsford, Essex)

The Roman civitas capital of the Trinovantes. The name of this town, meaning 'The Field of Caesar', may point to the town being founded on (or near) the site of a battle fought between the Romans and the Britons in AD43.

The Tribal Πολις Assigned by Ptolemy

Camvlodvnvm (Colchester, Essex)

The only town mentioned by Ptolemy was the ancient tribal capital of the Trinovantes, which had been wrested from them during a war with the neighbouring Catuvellauni c.AD9. After the Roman invasion the town became the site of the first Roman Legionary Fortress in Britain and was later to become the first Roman colonia in the province. Both establishments were self-administrating and were allocated a large proportion of the original Trinovantian tribal territories.

Other Settlements and Places of Interest

Canonivm(Rivenhall, Kelvedon, Essex) - Mentioned in the Antonine Itinerary and the Peutinger Table.
Combretovivm(Baylham House, nr. Coddenham, Suffolk) - A minor settlement at an important road junction.
Dvrolitvm(Romford, Essex) - Mentioned in the Antonine Itinerary, but not supported by archaeological evidence.
Sitomagvs(somewhere near Dunwich, Suffolk) - Mentioned in the Antonine Itinerary, and in the Peutinger Table as Sinomagus, has now been engulfed by the sea.
Villa Favstini?(Scole, Norfolk) - Posting station and minor settlement on the road north between Colchester and Caistor-by-Norwich, possibly to be identified with the Villa Faustini of the Antonine Itinerary.
Long Melford(Suffolk) - Minor settlement and posting station north-west of Colchester.
Stoke Ash(Suffolk) - Posting station on the road north between Colchester and Caistor-by-Norwich.

Caesar's Trinobantes 55/54BC

It is possible that the Trinovantes were one of only two British tribes who sent the required tribute and hostages to Gaul where Caesar was wintering after his initial expedition to Britain in 55BC (vide Caesar B.G. iv.38).

"... the Trinobantes, the strongest state, perhaps, in those parts ... sent deputies to Caesar, promising to surrender to him and to do his commands, and beseeching him to protect Mandubracius¹ from outrage at the hands of Cassivellaunus, and to send him to their state as ruler and sovereign lord. ..." (Caesar De Bello Gallico v.20)
  1. Mandubracius was the exiled king of the Trinobantes. His father (unnamed by Caesar) had been slain by Cassivellaunus, and the Trinovantian prince forced to flee to the continent and the protection of Caesar.

Shortly after the Atrebates tribe were taken into his protection, Caesar defeated the army of Cassivellaunus near Wheathamstead, soon afterwards receiving the submission of the last of the hostile British tribes. Seeing all was lost, their appointed leader Cassivellaunus himself surrendered, trusting to the famed clemency of Caesar.

Caesar, obviously learning from his previous mistake, this time waited until all of the British hostages had been delivered to him in Kent, before moving his forces back to the continent where they were to spend the winter of 54/53BC. Prior to stepping aboard his trireme, he issued the resigned British warlord a warning:

"... He straitly charged Cassivellaunus to do no hurt to Mandubracius or the Trinobantes." (Caesar De Bello Gallico v.22)

Julius Caesar was destined never to return to Britain - indeed, no Roman general was to set foot on the island again for almost one hundred years - but the influence that he had on the future political development of the southern British tribes cannot be underestimated.

Dubnovellaunos Refuges with Augustus

There is a passage in the Res Gestae of the emperor Augustus which mentions the names of two reges Britannorum, or 'Kings of the Britons'.

"The following kings sought refuge with me as suppliants: ... of the Britons; Dumnovellaunos¹ and Tim[...]² ..." (Augustus Res Gestae vi.32)
  1. Inscribed coinage recovered from the south-east of Britain, shows that there were two kings of this name: in Cantium, and in Essex.
  2. Both the Greek and Latin inscriptions are here defective; the name may be restored as Ti[ncom]m[ius], the Atrebatean monarch known to us through his coinage (vide hic).

It is thought that Dubnovellaunus travelled to Rome and paid tribute to Augustus before AD7, and this is recorded in the Res Gestae. When the Roman general Varus lost three legions in the German Teutoberger forest in AD9, it appears that Cunobelin of the Catuvellauni took the opportunity to attack and capture the Trinovantian capital. It is very likely that Dubnovellaunus would have travelled to Rome once more to plead his case before Augustus, but with the critical situation on the German borders the emperor was in no position to enforce discipline in Britain. The Varus disaster and the second visit by the Trinovantian king went unrecorded; the Res Gestae after all, listed Augustus' triumphs, not his failures.

Tribe Active in the Rebellion of Boudicca AD60/61

The trinovantes were later to have a significant role in the revolt associated with Queen Boudicca of their northern neighbours the Iceni. It is though likely that the primary reason for their joining the revolt was that they had not had their tribal lands returned to them after the defeat of Caratacus and the Catuvellauni.

"... they¹ flew to arms, and incited to rebellion the Trinobantes and others², who, not yet broken by servitude, had entered into a secret and treasonable compact to resume their independence. ...' (Tacitus Annales xiv.31)
  1. The Iceni, who occupied Norfolk, northern Suffolk and eastern Cambridgeshire.
  2. Probably a large contingent of the Catuvellauni, possibly joined by smaller forces from the Coritani and the Dobunni.
Further information on Boudicca's rebellion of AD60/61 may be found on the RBO WebPage dealing with the Iceni.

The Trinovantian Kings
Identified from Coinage Evidence

MandubraciusWas regarded by Caesar as the most powerful of the British tribal monarchs in 54BC. Nothing further is known about him. The next identifiable ruler of the Trinovantes was Addedomaros who started his rule c.20-15BC, but whether he was the son or grandson of Mandubracius is not known; indeed, it is possible that Mandubracius was the last of his line, and that his throne was taken by, or given to the family of Addedomaros.
AddedomarosWas the next identifiable ruler of the Trinovantes after Mandubracius in Caesar's time, though it is not known whether any others preceeded him. Almost immediately upon his succession to the throne sometime between 25 to 15BC, he moved his centre of government from Braughing on the eastern headwaters of the river Lea to a new site on the east coast which he named 'the fort of the war god Camulos', or Camulodunum. It is possible that he either warred with or was client to Tasciovanus, for around 15-10BC the Catuvellaunian monarch produced a coin issue with the mint mark CAMV[lodunum]. He reigned for about a decade or so before being succeeded by his son Dubnovellaunus c.10-5BC. It is possible Mandubracius died intestate or leaving no heirs; the family of Addedomaros, possibly championed by his father, succeeded to the throne after a brief struggle between the remaining Trinovantian noble houses; the Catuvellaunian king Tasciovanus later claimed that he was the true heir to the thone (perhaps his mother was the daughter of Mandubracius) and went to war on that pretext; thanks primarily to the interest of Rome, Tasciovanus was forced to withdraw and Addedomaros resumed the throne.]
DubnovellaunusSucceeded Addedomaros to the Trinovantian throne c.10-5BC and ruled for several years before being supplanted by Cunobelin of the Catuvellauni. Like his contemporary Tincommius of the Atrebates, he appeared as a suppliant to Augustus and paid tribute on the Capitol in Rome before AD7. He should not be confused with Dubnovellaunus of the Cantiaci.

Bibliographical Links

See: Peoples of Roman Britain : The Trinovantes by Rosalind Dunnett (Duckworth, 1975);
The Geography of Claudius Ptolemaeus, trans. by E.L. Stevenson (Dover, New York, 1991);
Atlas of Great Britain by the Ordnance Survey (Country Life, 1982);
Historical Map and Guide: Roman Britain by the OS (4th Ed., 1990);