The name Caelius is derived from the Latin word "caelum" meaning "heaven".
Famous bearers
Bearers include Caelius Aurelianus (fl. 5th century), a Roman physician and writer on medical topics;
Marcus Caelius Rufus (82 BC - 48 BC), a Roman orator and politician;
Decimus Caelius Calvinus Balbinus (born 165), a jointly Roman Emperor with Pupienus between April and July of 238, the Year of the Six Emperors.
