The Roman fort at Burgh Castle formed part of a series of defences known as the Saxon Shore Forts, extending from Brancaster to Portchester. Construction began in the 3rd century AD, but by the later 4th century a series of forts were also constructed on the coast of modern-day France to mirror their British counterparts. The Roman military's reinforcement of the southern shore of Britain began as early as AD230 under the reign of Severus Alexander, with army units being reassigned to defend this area now seen as a key weak spot on the empire's border. By the end of the 3rd century, these forces had completed construction on the fortifications that formed the Saxon Shore Forts, several of which are still extant today and this article's namesake is amongst them. For those interested in learning more about these frontier defences, we will be investigating them further in a later article concerning the Comes Litoris Saxonici per Britanniam, title of the (Military) Count of the British Saxon Shore - a high-ranking military position governing the area - as his role is something of a unique position we wish to expand upon. For now, suffice to say that this area was a heavily-militarised zone from the middle of the 3rd century AD comprising several fortifications and military units stationed along the south-eastern coast of England.
Today's article concerns one specific site, Burgh Castle, located in modern-day Norfolk. The Roman name for the fort may well have been Gariannonum or Gariannum, however a second candidate for this name lies just 5.5 miles away at Caister-on-Sea, so we cannot be completely sure which fort was Gariannonum to the Romans. It has however been posited in the 1950s that the two sites fell under the same name, as both (at least in Roman times) occupied alternate sides of a large estuary, however this cannot be proven. Regardless of the Roman nomenclature for the site, Burgh Castle was one of the Saxon Shore Forts built within the 3rd century to ward off Saxon raiders to Britain.
The fort is of a relatively standard Roman pattern, the walls extending 200m x 100m on the internal side. Coin and pottery evidence from the site indicates occupation from the 3rd century AD until the 5th century AD (at least in regards to Roman culture). The site continued to be used well into the medieval period following the end of Roman occupation in Britain.
Suriving today are the remains of the outer wall as well as a series of defensive towers.
In the same deposit as the helmet were found an extensive collection of Roman pottery fragments, including colour-coated vessels from the nearby Hadham Kilns at Harston Obelisk near Much Hadham, and a large two-handled flagon with a face-mask emblazoned upon it. The find context also included three coins – one of indeterminable nature, and one each for the House of Probus (276-282 AD) and the House of Constantine (336-341 AD). The finds from two pits do sadly appear to have been mixed together by the excavator, which foxes the dating profile somewhat, however it seems we can comfortably date the find to the mid-4th Century – perhaps even later depending on when exactly the fort was no longer solely in Roman use.
Other pieces of ironwork were discovered with the helmet, as featured in the image below, although we cannot confirm that any were part of the helmet itself (some clearly being designed for another purpose). In order; (a) a flat iron plate originally attributed to an ear-guard but the shape seems incorrect, (b) a pendant loop, (c) an iron spike, (d) two flat plates of iron joined by a third piece sticking up at an angle, a ring attached to a hook, and (f) an iron finial that has been suggested as part of a helmet decoration (although it is rather crudely made and does not fit any of the surviving helmet pieces).
Photos of Burgh Castle courtesy of Paul Steele, “The Bald Hiker” - website link below.