Offensive:Racy: Likely | Adult: Possible Labels:text | horse | animal | cartoon OCR: File Navigation Help SENIOR OFFICER A legion's senior officers were appointed from Rome; only aristocrats need apply. The legion was commanded by a Legatus Legionis who 2 was also a senator. The 2nd in command was the Tribunus Laticlavius; usually a younger man who was, in essance, serving an apprenticeship. The Praefectus Castrorum, or camp prefect, 3rd in command was technically outranked by the Tribunus Angusticlavius, 5 tribunes of the equestrian order. Before the 1st century B.C. each Tribunus Angusticlavius commanded 2 cohorts. However, by Caesar's time they had become the equivalents of modern day staff officers. The headquarters of a legion also required a small army of Librarii (clerks), Beneficiarii (orderlies) & Immunes (tradesmen). The staff adjutant was called the Cornicularius.