Vitae caesarum quarum scriptores hi . C. Suetonius Tranquillus, Aelius Spartianus, Aelius Lampridius, Trebellius Pollio, Herodianus, Pomponius Laetus, Dion Cassius, Julius Capitolinus, Vulcatius Gallicanus, Flavius Vopiscus, Sextus Auretius Victor, Joannes