The name stems from him being born with a caul that formed a 'diadem'.
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.
Reverse: Homonoia facing, head left, holding patera and cornucopia; VΠ AΓPIΠΠA NIK_OΠOΛITΩN ΠΡOCIC / TΡΩ
Die Orientation: -
Weight: 12.4 g
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Reverse: VΠ ΑΓΡΙΠΠΑ ΝΙΚΟΠΟΛΙΤΩΝ ΠΡΟC ICT, City-gate flanked by two towers and with a taller third tower rising from center (or from behind)
Die Orientation: 12 H
Weight: 13.72 g
Diadumenian as Caesar under his father Macrinus as Augustus
Marcus Claudius Agrippa as legatus consularis
Reverse: Serapis head right wearing modius; COL·P·FL·AV_F·C·CAESAR
Die Orientation: -
Weight: 7.7 g
Reverse: NIKOΠOΛITΩN, serpent-entwined staff of Asklepios
Die Orientation: -
Weight: 1.9 g
Reverse: Asklepian snake-encircled staff; NIKOΠO_ΛITΩN
Die Orientation: -
Weight: 4.3 g
Reverse: Eagle standing facing on leg and thigh of animal, head and tail right, with wings spread, holding wreath in beak; ·Δ·_·Є· across upper field; ΔHMAPX•ΕΞ•YΠA•TO
Die Orientation: -
Weight: 13 g
Reverse: VΠ CTA ΛONΓINOV NI[KOΠOΛITΩN] ΠPOC IC / Nemesis-Dikaiosyne standing facing, head left, holding scales and sceptre; wheel at feet
Die Orientation: -
Weight: 16.23 g
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Reverse: VΠ ΠONTIAN-O-V MAPKIANOΠOΛEI / TΩ-N / Demeter standing right, holding 2 corn-ears in left hand and a sceptre in right. E in upper right field
Die Orientation: -
Weight: 11.9 g