Historia Augusta

Series of biographies of the Roman emperors from Hadrian to Numerian (AD 117–284). It appears to have been written by six different authors, Aelius Spartianus, Julius Capitolinus, Aelius Lampridius, Vulcatius Gallicanus, Trebellius Pollio, and Flavius Vopiscus, possibly in the time of Diocletian and Constantine.

The Historia Augusta is a very uneven and unreliable work, and its date of composition is disputed. Literary references and quotations from these documents are regarded as suspect, and historians disagree over the aims of the writer or writers. Some have seen it as an attack on Christianity, but that is very unlikely.