found: Canones SS. Apostolorum..., 1672
found: BL database, 8 Jul. 2010(hdg.: Aristenus, Alexius)
found: Dictionary of Greek and Roman biography and mythology, 1870(Alexius Aristenus, Oeconomus of the Great Church at Constantinople, fl. 1166)
found: Kommentar zur Synopsis canonum, 2019t.p. (Alexios Aristenos)
found: Wikipedia, viewed May 10, 2022(Alexios Aristenos was oikonomos and nomophylax of the Great Church at Constantinople. He flourished around 1166 AD, in which year he was present at the Council of Constantinople. He edited a Synopsis Canonum with scholia) publisher's website ("Alexios Aristenos (pre 1100-post 1166)").