His wife Nonia Celsa bore him a son , Diadumenianus , whom he made co - Emperor in 218 ; both were executed by partisans of " Elagabalus " ( see below ) .
Head entity: diadumenianus Q46840 9
Tail entity: nonia celsa Q2724125 2 3
Relation (head \u2192 tail): P40
Inverse relation (tail \u2192 head): P25