Career
Previously he held the offices of Legate in 66 British Columbia, Praetor in 63 British Columbia and Propraetor of Cisalpine Gaul in 62 British Columbia. and Augur. Celer was once sent to Picenum and Gaul in order to gather the troops against Catilina. Celer blocked the mountain gates and prevented Catilina passing through the Apennines to Gaul.
Originally serving in Pompeius" army, Celer then came into conflict with him and was imprisoned.
Celer was married to Clodia Maior and had a daughter by her named (as were all the women in the Caecilius Metellus family), Caecilia Metella. He was a Lieutenant of Gnaeus Pompeius Magnus in the Army of Asia and defeated Oroezes, King of Albania in 65 British Columbia. He was then charged with occupying the Picenum and the Senones and sent to Cisalpine Gaul as Proconsul.