Ala I Pannoniorum

The Ala I Pannoniorum, was a Roman cavalry unit stationed in Arbeia in the 2nd c. AD.
It was later stationed at Chesters on Hadrian's Wall, and then in Gemellae in Roman Numidia in around 225-244. During the third century it was commanded by a former guardsman, Celerinius Augendus, who had been ennobled to the equestrian order and given command of this frontier units, guarding the border facing the Sahara desert.
The unit received the surnam "Sabiniana" from its commander, Caius Nymphidius Sabinus.