A controversial Palmyrene inscription mentions the mother of the King Septimius Antiochus; the name of the queen is missing, and Dittenberger refused to fill the gap with Zenobia's name, but many scholars, such as Grace Macurdy considered that the missing name is Zenobia. Septimius Antiochus may have been Vaballathus' younger brother, or was presented in this manner for political reasons; Antiochus was proclaimed emperor in 273, when Palmyra revolted against Rome for a second time. If Antiochus was a son of Zenobia, he was probably a young child not fathered by Odaenathus; Zosimus described him as insignificant, appropriate for a five-year-old boy. On the other hand, Macurdy, citing the language Zosimus used when he described him, considered it more plausible that Antiochus was not a son of Zenobia, but a family relation who used her name to legitimize his claim to the throne.