Historia Augusta in the context of "Suetonius"

Marcus Aurelius Antoninus (born Sextus Varius Avitus Bassianus, c. 204 – 13 March 222), better known by his posthumous nicknames Elagabalus (/ˌɛləˈɡæbələs/ EL-ə-GAB-ə-ləs) and Heliogabalus (/ˌhiːliə-, -lioʊ-/ HEE-lee-ə-, -⁠lee-oh-), was Roman emperor from 218 to 222, while he was still a teenager. His short reign was notorious for religious controversy and alleged sexual debauchery. A close relative to the Severan dynasty, he came from a prominent Syrian Arab family in Emesa (Homs), Syria, where he served as the head priest of the sun god Elagabal from a young age. After the death of his cousin, the emperor Caracalla, Elagabalus was raised to the Principate at 14 years of age in an army revolt instigated by his grandmother Julia Maesa against Caracalla's short-lived successor, Macrinus. He only posthumously became known by the Latinised name of his god.

Elagabalus is largely known from accounts by the contemporary senator Cassius Dio who was hostile to him, Herodian, who likely relied extensively on Dio, and the much later Historia Augusta. The reliability of the accounts of Cassius Dio and the Historia Augusta, particularly their most salacious elements, has been questioned. Elagabalus showed a disregard for Roman religious traditions. He brought the cult of Elagabal (including the large baetyl stone that represented the god) to Rome, making it a prominent part of religious life in the city. He forced leading members of Rome's government to participate in religious rites celebrating this deity, presiding over them in person. According to the accounts of Cassius Dio and the Augusta, he married four women, including a Vestal Virgin, in addition to lavishing favours on male courtiers they suggested to have been his lovers, and prostituted himself. His behaviour estranged the Praetorian Guard, the Senate, and the common people alike. Amidst growing opposition, at just 18 years of age he was assassinated and replaced by his cousin Severus Alexander in March 222. The assassination plot against Elagabalus was devised by Julia Maesa and carried out by disaffected members of the Praetorian Guard.

Gordian III (Latin: Marcus Antonius Gordianus; 20 January 225 – c. February 244) was Roman emperor from 238 to 244. At the age of 13, he became the second-youngest sole emperor of the united Roman Empire. Gordian was the son of Maecia Faustina and her husband Junius Balbus, who died before 238. Their names are mentioned in the unreliable Historia Augusta. Maecia was the daughter of Emperor Gordian I and sister of Emperor Gordian II. Very little is known of his early life before his acclamation.

Saoterus (Greek: Σαώτερος ὁ Νικομηδεύς; died 182) was a Bithynian Greek freedman from Nicomedia who served as the Roman Emperor Commodus's palace chamberlain (a cubiculo). His career is sketched by Herodian, Dio Cassius and the Historia Augusta. Commodus preferred to exercise his rule through palace officials and Saoterus was the first of these; Saoterus was seen as in the Emperor's favour at the outset of his reign, as he accompanied Commodus in his chariot when he made his ceremonial entry into Rome on 22 October 180. Commodus placed him in a high position in his government, resulting in resentment from noble senatorial families. The Historia Augusta, apparently drawing on the testimony of Marius Maximus, insinuates that Commodus had a homosexual infatuation with Saoterus. After the attempt on Commodus's life in 182, Saoterus was implicated in the plot by the praetorian prefect Tigidius Perennis, and was murdered by the freedman Cleander, who succeeded him as chamberlain.

Marcus Aurelius Cleander (Greek: Μᾶρκος Αὐρήλιος Κλέανδρος; died 19 April 190), commonly known as Cleander, was a Roman freedman who gained extraordinary power as chamberlain and favourite of the emperor Commodus, rising to command the Praetorian Guard and bringing the principal offices of the Roman state into disrepute by selling them to the highest bidder. His career is narrated by Dio Cassius, Herodian and the Historia Augusta.

Diadumenian (/daɪˌædʊˈmiːniən/ dy-AD-uu-MEE-nee-ən; Latin: Marcus Opellius Antoninus Diadumenianus; 14 September 208 – June 218) was the son of the Roman emperor Macrinus and served as his co-ruler for a brief time in 218. His mother, Macrinus' wife, is called Nonia Celsa in the unreliable Historia Augusta, though this name may have been fictional. Diadumenian became caesar in May 217, shortly after his father's accession to the imperial throne. Elagabalus, a relative of the recently deceased Caracalla, revolted in May of the following year, and Diadumenian was elevated to co-emperor. After Macrinus was defeated in the Battle of Antioch on 8 June 218, Diadumenian was sent to the court of Artabanus IV of Parthia to ensure his safety; however, he was captured and executed along the way. After his death and that of his father, the Senate declared both of them enemies of Rome and had their names struck from records and their images destroyed — a process known in modern scholarship as damnatio memoriae.

Hermann Dessau (6 April 1856, Frankfurt am Main – 12 April 1931, Berlin) was a German ancient historian and epigrapher. He is noted for a key work of textual criticism published in 1889 on the Historia Augusta, which uncovered reasons to believe that this surviving text of ancient Roman imperial history had been written under circumstances very different from those previously believed.

He studied at the University of Berlin as a pupil of Theodor Mommsen, receiving his doctorate in 1877 from the University of Strasbourg. On behalf of the Corpus Inscriptionum Latinarum (CIL) he travelled to Italy and North Africa. In 1884 he was habilitated as a historian in Berlin, where he subsequently became an associate honorary professor (1912) and full honorary professor (1917). From 1900 to 1922 he served as a scientific officer for the Prussian Academy of Sciences.

Cancelli are lattice-work, placed before a window, a door-way, the tribunal of a judge, the chancel of a church, or any other similar place.

This led to the occupation of cancellarius, which originally signified a porter who stood at the latticed or grated door of the emperor's palace. According to the Historia Augusta, the emperor Carinus (reigned 283–285) gave great dissatisfaction by promoting one of these cancellarii to city prefect, although the veracity of this account is disputed.

P. C. Regalianus (died 260/261), known in English as Regalian, was Roman usurper for a few months in 260 and/or 261, during the Crisis of the Third Century, a period of intense political instability in the Roman Empire. Regalian was acclaimed emperor by the troops along the Danube river, a region of the empire that frequently experienced barbarian raids, probably in the hope that he might be able to secure the frontier.

Accounts by surviving literary sources concerning Regalian are brief and few in number, and are mostly considered unreliable. The Historia Augusta relates that he was of Dacian descent, and a descendant of the Dacian king Decebalus, but this is mostly rejected in modern scholarship. Regalianus was married to Sulpicia Dryantilla, a woman from a prestigious senatorial family, which instead points to Regalian also being of high-ranking Roman descent. Regalian's acclamation as emperor was in the wake of a previous usurpation attempt by Ingenuus, also proclaimed by the Danube troops, that had been defeated by emperor Gallienus (r. 253–268). Unlike Ingenuus, and revolutionary for an imperial claimant, Regalian founded his own mint at Carnuntum, his seat of power. He minted coins of himself and his wife, though they were typically of poor quality.