Roman BritainIuliobona
Roman Settlement · Civilian

Iuliobona

Roman Britain
Pleiades ID: 109069
Site type
Settlement
Category
Civilian
Latitude
49.5196
Longitude
0.5357
Overview

History & context

Iuliobona, modern Lillebonne in Normandy, was the civitas capital of the Caletes, situated at the head of a small valley draining into the Seine estuary. Founded in the early 1st century AD and flourishing through the 2nd and 3rd centuries, it functioned as the administrative, commercial and religious centre for the Caletes territory, with a substantial urban population engaged in trade along the Seine corridor.

Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →

Significance

Historical significance

As the chief town of one of the Gallo-Belgic civitates of Lugdunensis (rather than strictly Belgica), Iuliobona linked the lower Seine valley with cross-Channel trade routes to Britain, serving as a key port and redistribution hub between Rotomagus (Rouen) and the coast. Its monumental public buildings reflect its status as a politically integrated provincial capital granted Julio-Claudian patronage, indicated by its theophoric name.

Archaeology

Archaeological record

The site is best known for its remarkably preserved Roman theatre, one of the largest in northern Gaul with a capacity of around 3,000, alongside excavated remains of a forum, baths, domus with mosaics, and a notable bronze statue of Apollo recovered in the 19th century. Recent excavations and the modern Juliobona museum have further documented the urban grid, port infrastructure on the Bolbec, and craft quarters.

About this site

Questions & answers

What is Iuliobona?

Iuliobona, modern Lillebonne in Normandy, was the civitas capital of the Caletes, situated at the head of a small valley draining into the Seine estuary. It is recorded in the Pleiades gazetteer of ancient places as a settlement site from the Roman period in Britain.

What type of Roman site is Iuliobona?

Iuliobona is classified as a Roman settlement — a civilian site in the Pleiades ancient world gazetteer. Roman Britain's archaeology encompasses thousands of sites ranging from legionary fortresses and marching camps to villas, temples and towns.

What other Roman sites are near Iuliobona?

Several Roman sites lie within a short distance, including Gallo-Roman Theater of Lillebonne (0.2 km), Loium? (13.6 km), Caracoticum (24.3 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.

How can I research the history of the area around Iuliobona?

Aubrey Research generates detailed historical reports for any location in Britain, incorporating Roman heritage, Domesday Book records, scheduled monument data, archaeological finds and much more. Enter a nearby address to begin.

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