 He also published a commentary on Ovid "Metamorphoses" VIII (1970) and "Ars Amatoria" I (1977), and an edition of "Fragments of Roman Poetry, c. 60 BC-AD 20 " (2007).Hollis was the only child of Sir Roger Hollis, who served as Director-General of MI5 from 1956 to 1965.His uncle Christopher Hollis was a writer and Conservative politician, and he shared a grandfather, the Anglican later bishop-suffragan of Taunton, the Right Revd George Arthur Hollis (1868–1944), with first cousin Crispian Hollis who is the Bishop of Portsmouth for the Catholic Church.