Cohors quarta Gallorum equitata ("4th part-mounted Cohort of Gauls") was a Roman auxiliary cohort containing both infantry and cavalry contingents. It was probably raised in Gallia Lugdunensis at the time of the founder-emperor Augustus (30BC - 14AD). It is first attested in Moesia in 75 AD and was still in Moesia Inferior in 105. It therefore probably took part in the emperor Trajan's Dacian Wars (99-106). After a brief stay in Thracia (where it is attested in 114), it was transferred to Britannia not later than 122. Its last datable attestation is in 276-82, still at Vindolanda. But the Notitia Dignitatum, a late Roman official document, records a cohors IV Gallorum at Vindolanda under the dux Britanniarum, the commander of limitanei (border forces) along Hadrian's Wall. The Western sect