"0217Z"^^ . "0208-09-14Z"^^ . "Diadumenian"@en . "0218Z"^^ . "Diadumenian (Latin: Marcvs Opellivs Antoninvs Diadvmenianvs Avgvstvs) (September 14/19, 208 \u2013 218), was the son of the Roman Emperor Macrinus, and served his father briefly as Caesar (May 217\u2013218) and as Augustus (in 218). He was so named due to being born with a caul that formed a 'diadem'.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."@en . . . . "0208Z"^^ . "Marcus Opellius Antoninus Diadumenianus"@en . "0218Z"^^ . "Roman emperor" . . "Caesarof theRoman Empireunder Macrinus"@en . .