
1) Byzantine court title 2) Byzantine palace office
Found on
https://www.crosswordclues.com/clue/ostiarios

==History and functions== The Patria of Constantinople mention an ostiarios named Antiochos in the 6th century at the time of Emperor Justinian I (r. 527–565), and a 7th-century seal records an ostiarios and koubikoularios (servant of the imperial bedchamber). As a pure dignity, to be held alongside proper offices, the ostiarios is first recorde...
Found on
http://en.wikipedia.org/wiki/Ostiarios
No exact match found.