NoDictionaries   Text notes for  
... et centurionibus et sui cuiusque ordinis militibus, ut consensu...

"quisque" agreeing with "sui" to form in effect a compound adj.: "of each distinct," "of their several"; the gen. is one of quality, with "ordinis" meaning "century" as a military term; note the abl. of quality, "diversis manipulis," in the same sentence.