Sulloniacis was a small Romano-British roadside settlement on Watling Street between Verulamium (St Albans) and Londinium, conventionally identified with the area around Brockley Hill on the Middlesex/Hertfordshire border. It is named in the Antonine Itinerary (Iter II) as a posting station, and was active from the mid-1st century AD into at least the 2nd century, with some occupation continuing later.
Source: Pleiades — A Community-Built Gazetteer and Graph of Ancient Places. View the Pleiades record →
Its main importance was economic: Brockley Hill was one of the major pottery-production centres supplying Londinium, particularly noted for the manufacture of mortaria and other coarse wares in the later 1st and 2nd centuries AD, with potters such as Matugenus, Albinus, and Sollus stamping vessels distributed widely across southern Britain. It also functioned as a wayside *mansio* or staging post on a key arterial road.
Excavations from the 1930s onwards, and more systematically by the Brockley Hill Project and rescue work along the A5, have revealed kilns, wasters, clay-extraction pits, and ditched enclosures flanking Watling Street, along with quantities of stamped mortaria that have defined the regional typology. No substantial masonry buildings or formal *mansio* structure have been securely identified, and the precise focus of the named settlement remains debated.
Sulloniacis was a small Romano-British roadside settlement on Watling Street between Verulamium (St Albans) and Londinium, conventionally identified with the area around Brockley Hill on the Middlesex/Hertfordshire border. It is recorded in the Pleiades gazetteer of ancient places as a settlement site from the Roman period in Britain.
Sulloniacis 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.
Several Roman sites lie within a short distance, including Radlett (7.7 km), Park Street (9.3 km), Roman villa on Moor Park golf course (9.4 km). Aubrey Research maps over 2,200 Roman sites across Britain, drawn from the Pleiades ancient world gazetteer.
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