Suetonius claims Titus was born in the year Caligula was assassinated, 41. However, this contradicts his statement that Titus died in his 42nd year, as well as Cassius Dio, who notes that Titus was 39 at the time of his accession. See Suetonius, The Lives of Twelve Caesars, Life of Titus 1, 11; Cassius Dio, Roman HistoryLXVI.18; and Brian Jones (2002). Suetonius: The Flavian Emperors: A Historical Commentary. London: Bristol Classical Press. p. 91. ISBN1-85399-613-0. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)