As ex‐praetor in ad 41, commanded against the Mauretanians and was the first Roman to cross the Atlas mountains. In 58 he was appointed governor of Britain and at once began a forward movement reaching the Irish Sea and subduing Mona, a stronghold of druidism (see religion, celtic). During the campaign he learnt of Boudicca's revolt (60) and swiftly returned with his advance‐guard, but, unable to concentrate an adequate force, was compelled to abandon Londinium and Verulamium to be sacked. Retreating (along Watling Street) to his main force, he routed Boudicca's attack. His severity towards the rebels led to discords with the procurator Iulius Classicianus and his own recall (61).