Quote Originally Posted by Orophin View Post
While we haven't been formally introduced to them, there are members of the other Legions present out in the other Castrums in the world. XIVDB has the 1st - 5th Cohorts listed, as well as the 7th and 8th. I would assume each Cohort is a smaller section of each respective Legion.
Roman legions were made up of 10 cohorts named first to tenth cohort. Garlean cohorts would most likely be the same (except possibly the number per legion), so those are 1st-8th cohorts of the XIVth legion.