Diadumenian

Caesar of the Roman Empire under Macrinus

Diadumenianus on a denarius.

Reign

May 217 – 218 (as Caesar under Macrinus); 218 (as Augustus

Born

September 14, 208 AD

Died

218 AD
Antioch

Full name
Marcus Opellius Antoninus Diadumenianus

Father

Macrinus

Mother

Nonia Celsa (?)

Diadumenian (Latin: Marcus Opellius Antoninus Diadumenianus Augustus) (September 14/19, 208 – 218), was the son of the Roman Emperor Macrinus, and served his father briefly as Caesar (May 217–218) and as Augustus (in 218). He was so named due to being born with a caul that formed a 'diadem'.^[1]

Diadumenian was born on 14 September 208 or, according to Historia Augusta, on September 19 because he shared the same birthday with the Emperor Antoninus Pius. His mother was Empress Nonia Celsa, although little is known of her: she is only mentioned by the Historia Augusta. He was born Marcus Opellius Diadumenianus, but his name was changed and added Antoninus to solidify connection to the family of Marcus Aurelius as done by Caracalla.

Diadumenian had little time to enjoy his position or to learn anything from its opportunities because the legions of Syria revolted and declared Elagabalus ruler of the Roman Empire. When Macrinus was defeated on 8 June 218, at Antioch, Diadumenian's death followed his father's.

References

↑ "PDF File" (PDF). caulbearersunited.webs.com.

External links

Life of Diadumenianus (Historia Augusta at LacusCurtius: Latin text and English translation)
De imperatoribus Romanis: an on-line encyclopedia of Roman emperors.

Wikimedia Commons has media related to Diadumenianus.

Regnal titles
Preceded by Macrinus	Roman Emperor 217–218 Served alongside: Macrinus	Succeeded by Elagabalus

Roman and Byzantine emperors

Principate 27 BC – 235 AD	Augustus Tiberius Caligula Claudius Nero Galba Otho Vitellius Vespasian Titus Domitian Nerva Trajan Hadrian Antoninus Pius Marcus Aurelius and Lucius Verus Commodus Pertinax Didius Julianus (Pescennius Niger) Septimius Severus Caracalla with Geta Macrinus with Diadumenian Elagabalus Severus Alexander

Crisis 235–284	Maximinus Thrax Gordian I and Gordian II Pupienus and Balbinus Gordian III Philip the Arab Decius with Herennius Etruscus Hostilian Trebonianus Gallus with Volusianus Aemilianus Valerian Gallienus with Saloninus Claudius Gothicus Quintillus Aurelian Tacitus Florian Probus Carus Carinus and Numerian

Dominate 284–395	Diocletian (Whole empire) Diocletian (East) and Maximian (West) Galerius (East) and Constantius Chlorus (West) Galerius (East) and Severus (West) Galerius (East) and Licinius I (West) Licinius I (West) and Maximinus Daia (East) Licinius I (East) and Constantine the Great (West) Constantine the Great (Whole empire), with son Crispus as Caesar Constantine II Constans I Magnentius with Decentius as Caesar Constantius II with Vetranio Julian Jovian Valentinian the Great Valens Gratian Valentinian II Magnus Maximus Theodosius the Great

Western Empire 395–480	Honorius Constantius III Joannes as Western usurper in Ravenna Valentinian III Petronius Maximus Avitus Majorian then Libius Severus then Anthemius then Olybrius Glycerius Julius Nepos (de jure) Romulus Augustulus (Usurper)

Eastern/ Byzantine Empire 395–1204	Arcadius Theodosius II Pulcheria Marcian Leo I the Thracian Leo II Zeno (first reign) Basiliscus with son Marcus as co-emperor Zeno (second reign) Anastasius I Dicorus Justin I Justinian the Great Justin II Tiberius II Constantine Maurice with son Theodosius as co-emperor Phocas Heraclius Constantine III Heraklonas Constans II Constantine IV with brothers Heraclius and Tiberius and then Justinian II as co-emperors Justinian II (first reign) Leontios Tiberios III Justinian II (second reign) Philippikos Anastasios II Theodosius III Leo III the Isaurian Constantine V Artabasdos Leo IV the Khazar Constantine VI Irene Nikephoros I Staurakios Michael I Rangabe Leo V the Armenian with Symbatios-Constantine as junior emperor Michael II the Amorian Theophilos Michael III Basil I the Macedonian Leo VI the Wise Alexander Constantine VII Porphyrogennetos Romanos I Lekapenos with sons Christopher, Stephen and Constantine as junior co-emperors Romanos II Nikephoros II Phokas John I Tzimiskes Basil II Constantine VIII Zoe (first reign) and Romanos III Argyros Zoe (first reign) and Michael IV the Paphlagonian Michael V Kalaphates Zoe (second reign) with Theodora Zoe (second reign) and Constantine IX Monomachos Constantine IX Monomachos (sole emperor) Theodora Michael VI Bringas Isaac I Komnenos Constantine X Doukas Romanos IV Diogenes Michael VII Doukas Nikephoros III Botaneiates Alexios I Komnenos John II Komnenos Manuel I Komnenos Alexios II Komnenos Andronikos I Komnenos Isaac II Angelos Alexios III Angelos Alexios IV Angelos Nicholas Kanabos as usurper chosen by the Senate Alexios V Doukas

Empire of Nicaea 1204–1261	Constantine Laskaris Theodore I Laskaris John III Doukas Vatatzes Theodore II Laskaris John IV Laskaris

Eastern/ Byzantine Empire 1261–1453	Michael VIII Palaiologos Andronikos II Palaiologos with Michael IX Palaiologos as co-emperor Andronikos III Palaiologos John V Palaiologos John VI Kantakouzenos with John V Palaiologos and Matthew Kantakouzenos as co-emperors John V Palaiologos Andronikos IV Palaiologos John VII Palaiologos Andronikos V Palaiologos Manuel II Palaiologos John VIII Palaiologos Constantine XI Palaiologos

Italics usually indicate an usurper or co-emperor.

Authority control	WorldCat VIAF: 89203309 LCCN: nb2010014805 GND: 1025200306

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