Barbara Levick is Fellow and Tutor Emeritus, St. Hilda’s College, Oxford. She has published extensively on Roman history, with titles including Tiberius the Politician (Routledge, 1999), Vespasian (Routledge, 1999), The Government of the Roman Empire, second edition(Routledge, 2001), Julia Domna: Syrian Empress (Routledge, 2007), Augustus: Image and Substance (2010) and Imperial Women of the Golden Age: Faustina I and II (2014).