fort established around 75 AD, and a second element which is less certain. The antiquarian William Camden recorded the origin of the name as "Caer-Didi" (Didius' Fort). This derives from local beliefs that Didius had built the fort before the arrival of Frontinus in Britain and his construction of numerous supplementary fortifications in South Wales. Though most modern linguists dismiss this derivation, the Didius connection has remained popular throughout the centuries, appearing in Camden's Britannia (1586), The Beauties of England and Wales (1815), and the writings of Iolo Morganwg and Taliesin Williams. Relatives Whom Didius married, or whether he had married at all, is unknown. From his name, experts believe that Aulus Didius Gallus Fabricius Veiento, who was praetor in 62, is somehow related to Didius. Some, such as Edmund Groag and Mario Torelli, thought that Veiento was his son or grandson. Olli Salomies has shown that it is more likely that Veiento was adopted by Didius Gallus, at some point before Veiento became praetor. Anthony Birley mentions a "less certain" relative, Gaius Pomponius Gallus Didius Rufus, proconsul of Crete and Cyrenaica in 88/89. References Primary sources Frontinus, On the Water Supply of Rome 2:102 Tacitus, Agricola 14; Annals 12:15, 12:40, 14:29 Quintilian, Institutio Oratoria Book 6, 3:68 Secondary sources Citations External links Aulus Didius Gallus at Roman-Britain.org Roman governors of Sicily Suffect consuls of Imperial Rome Roman governors of Britain Ancient Romans in Britain Ancient Roman generals 1st-century Romans Gallus, Aulus