First attested in Britain in AD122 (CILXVI.69), and recorded at Ribchester on an undated altar to the Mother Goddesses, which is probably of the second century. By 181 they were stationed at Chesters on Hadrian's Wall, and there they remained, until the end of Roman occupation in Britain. The appearance of a third century tombstone of a veteran at Lincoln is no evidence that the unit were ever posted there.
