BattlefieldsAttack on Birdoswald Fort
Roman Period

Attack on Birdoswald Fort

296–300
Cumbria, England
Also known as: Banna Fort Attack · Birdoswald Destruction Layer
Era
Roman Period
Battle Type
Siege
Location
Cumbria, England
Status
Unregistered
The Combatants

Who Fought

Defeated
Rome
VS
Victor
Varies
Outcome
Fort shows destruction and rebuilding; possible attack during period of political instability.
The Battle

History & Significance

Birdoswald Roman Fort, known to the Romans as Banna, was one of the 16 forts on Hadrian's Wall. Built in the 2nd century AD, Banna, as a site, continued to be used well beyond Roman occupation. After a short period of desertion, the site was reoccupied around the 13th century and was used as a farm up until 1984.

Birdoswald lies towards the western end of Hadrian's Wall and is one of the best preserved forts along the wall. It is also attached to the longest surviving stretch of Hadrian's Wall. As of June 2023, over 200 students have worked on excavations at the site.

Cumbria County Council were responsible for the management of Birdoswald fort from 1984 until the end of 2004, when English Heritage assumed responsibility.

The Romans referred to the fort at Birdoswald as Banna, meaning 'peak' or 'horn' in Celtic, reflecting the geography of the site on a triangular spur of land bounded by cliffs to the South and East, commanding a broad meander of the River Irthing in Cumbria below.

Little evidence exists of pre-Roman occupation of the area; the land was too boggy or steep to farm so the area had remained uncleared of trees. A stone-lined pit, presumably a burial cist or grave, is the only evidence of activity at this time.

Just as the rest of Hadrian's Wall, the Western part on which Birdoswald now sits was probably originally built starting from 122 AD. The site was chosen for its strategic position, but that meant that, before any building could commence, the area had to be cleared of trees and the bog drained. Banna was intended to protect a crossing at the river Irthing, where a bridge had been constructed at roughly the same time as the wall. This section of the wall was originally built as a turf wall with free-standing stone turrets and a tented camp South of the later fort, possibly for legionary soldiers who were building the wall.

The first fort was build around 125 AD, but very little is known of this first fort. Evidence suggests that it was built of turf and timber, and possibly straddled the turf wall. Its size is uncertain. To the South of the fort was what's known as the Vallum, a vast earthwork running the length of the wall, passable only really by causeways leading to the South gate of each fort. It's purpose is also not certain.

The original timber fort was rebuilt in stone sometime around 130 AD, the walls built at this time are those still enclosing the site today. The new fort was built larger than the previous timber one, being 2.12 hectares, and also straddled the turf wall, with the North, East, and West gates all situated to the North of it. Minor East and West gates were situated South of the turf wall. The interior was filled with a complex, with all the trapping of a Roman fort: a small number of objects also suggesting that the garrison first stationed at Banna may have been a cavalry or, at least, a partly-mounted unit.

The ground

The ground they fought on

The site of Attack on Birdoswald Fort lies on Yoredale Group, bedrock that formed in the Bashkirian. The rock here is limestone, argillaceous rocks and subordinate sandstone, interbedded.

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Overview
An interactive map of the location with every monument and battle plotted, and a plain-language history built only from what the record holds.
Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
Domesday
The settlement's entry in the 1086 Domesday Book: who held it, what it was worth, and the people who worked the land.
Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
LiDAR
Laser-scanned terrain that reveals earthworks hidden under fields and woodland, with likely features flagged.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
The books, county histories, charters and archives that mention this place, quoted with their sources.
Legal
The protected sites nearby and the metal-detecting, access and treasure laws that apply to this ground.
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Protected heritage nearby

Scheduled Monuments near Attack on Birdoswald Fort

Bastle at Upper Denton
Bastle at Upper Denton
Scheduled monument · ~0.2 mi

Bastle at Upper Denton is a fortified farmhouse situated in Cumberland in the Anglo-Scottish border region. The structure dates to the early modern period, representing a distinctive building type developed in response to the endemic raiding and lawlessness that characterised the borderlands from…

Les Hull / CC BY-SA 2.0 / Wikimedia Commons
St Cuthbert's Church, 100m north west of Upper Denton Farm
St Cuthbert's Church, 100m north west of Upper Denton Farm
Scheduled monument · ~0.2 mi

St Cuthbert's Church is a medieval parish church located north-west of Upper Denton Farm in Cumberland. The church is designated as an ancient monument of archaeological significance, reflecting its long history of use and development within the local community. The structure exhibits characteris…

Ashley Columbus / CC BY-SA 4.0 / Wikimedia Commons
Birdoswald Roman fort and the section of Hadrian's Wall and vallum between the River Irthing and the field boundaries east of milecastle 50
Birdoswald Roman fort and the section of Hadrian's Wall and vallum between the River Irthing and the field boundaries east of milecastle 50
Scheduled monument · ~0.3 mi

Birdoswald Roman fort is a substantial auxiliary fort positioned on Hadrian's Wall in Cumberland, England, dating to the second century AD onwards. The fort was constructed during the reign of Hadrian and served as a garrison for auxiliary troops guarding this critical frontier installation. The…

Frombowen / CC BY-SA 4.0 / Wikimedia Commons
Hadrian's Wall and vallum and their associated features between Poltross Burn and the River Irthing in wall mile 48
Hadrian's Wall and vallum and their associated features between Poltross Burn and the River Irthing in wall mile 48
Scheduled monument · ~0.8 mi

Hadrian's Wall in wall mile 48 between Poltross Burn and the River Irthing is a section of the Roman frontier fortification built under the Emperor Hadrian in the second century AD, extending across northern Britain from the Solway Firth to the Tyne estuary. This stretch retains substantial remai…

Derek Harper / CC BY-SA 2.0 / Wikimedia Commons
Enclosure castle known as Triermain Castle
Enclosure castle known as Triermain Castle
Scheduled monument · ~1.6 mi

Triermain Castle is a fourteenth-century pele tower situated in Cumberland, near Penrith, constructed as a defensive stronghold during the medieval period when border fortifications were essential to the region's security. The structure represents the tower-house tradition characteristic of north…

Peter McDermott / CC BY-SA 2.0 / Wikimedia Commons
Nether Denton Roman fort, associated vicus and length of Stanegate Roman road
Nether Denton Roman fort, associated vicus and length of Stanegate Roman road
Scheduled monument · ~1.6 mi

Nether Denton Roman fort is a first and second century military installation located in Cumberland on the Stanegate road, which formed a significant supply and communication route across northern England prior to the construction of Hadrian's Wall. The fort was established to control passage alon…

Moated site at Upper Denton
Scheduled monument · ~0.2 miles
Roman signal station on Mains Rigg
Scheduled monument · ~0.4 miles
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Sources