This regiment was a five-hundred strong mixed unit of cavalry and infantry, recruited from the among the Astures tribe of Northern Spain. Evidently stationed at the Llanio fort in South Wales in the first and perhaps second centuries, their presence is next recorded claiming credit for rebuilding the granary of the fort at Great Chesters on Hadrian’s Wall in Northumberland. The unit is listed as the garrison of Great Chesters in the Notitia Dignitatum during the late-fourth century, but was here mistakenly attributed the numeral I primae.
Evidence for the presence of Cohors Secundae Asturum equitata in Britain
- Cil Vii.1194; privilegia militvm, dated: late? 105AD.
- Burn 100; CIL XVI.65; military diploma dated: July 17th 122AD.
- Cil Vii.1195; privilegia militvm, dated: September 16th 124AD.
- L’Année Épigraphique 1997.1779b; diploma, dated c.126AD.
- Llanio (RIB 407 et 408, both undated).
- Great Chesters (RIB 1738, dated 225AD).
- Great Chesters (Notitia Dignitatum).