Gordian III (Latin: Marcus Antonius Gordianus; 20 January 225 – c. February 244) was Roman emperor from 238 to 244. At the age of 13, he became the youngest sole emperor of the united Roman Empire.[9][10] Gordian was the son of Antonia Gordiana[11] and Junius Balbus, who died before 238.[12] Antonia Gordiana was the daughter of Emperor Gordian I[11] and younger sister of Emperor Gordian II. Very little is known of his early life before his acclamation. Gordian had assumed the name of his maternal great grandfather in 238.
^Gordian's birthday is recorded in the Chronograph of 354.[3] The year is often given as 225 or 226 on the basis of a statement in the Epitome de Caesaribus, which was written around the year 400.[4] The text explicitly states that he was "killed in the twenty-first year of his life", meaning that he was twenty, i.e. born in 224.[5] However, the historian Herodian, who lived during Gordian's reign, states that he was "about thirteen".[6]
^Before this the youngest were Alexander (aged 14) and Nero (aged 16). Later child emperors only ruled one half of the Empire, e.g. Honorius (aged 10) and Valentinian III (aged 6) in the West, and Theodosius II (aged 7) and Michael III (aged 2) in the East.