- 80 AD fort built
- 211 AD Headquarters of frontier Scouts and occupied by Cohors I Aelia Hispanorum
- 222 AD bath house built
- 350 AD abandoned but little evidence for this date
Visit Netherby
Netherby lies within the Netherby Hall estate. Check the estate’s visitor information before travelling.
Netherby at a glance
| Occupation | Roman occupation from the first century, with later rebuilding and third-century inscriptions. |
| Garrison | The First Aelian Cohort of Spaniards is attested in the third century. |
| Size | A reliable phase-specific internal area is not established in the sources summarised here. |
| Troop estimate | No secure numerical estimate is established here; fort area alone cannot determine the number present. |
Inscriptions
Building inscriptions and dedications document auxiliary troops and legionary detachments. Individual texts must be read in their dated contexts.
Sources for this summary
This fort was used by cavalry scouts over many years to survey the surroundings and forewarn of any activities by the Caledonians.
Military Units
- First Aelian Cohort of Spaniards
- 6th Legion
- 20th Legion
- detachment of 2nd Legion Augusta
- First Cohort Nervana
The British Roman Fleet has left an inscription near here – see RIB 1945. Building inscription of the Classis Britannica
References
- Castra Exploratum Roman Fort Historic England Research Records
- The Roman Fort at Netherby ( Eric Birley, Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society 53 (series 2))
- Netherby Inscription and altars (45) Roman Inscriptions of Britain
- Netherby (Castra Exploratorum) Roman Fort (Roman Britain)
- Netherby Roman Fort – Tynedale Hadrian’s Wall Group

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