Relics & Shrines
During the reign of Constantine the Great a church was built over the saint's tomb. The synaxarion relates that in the year 430 a priest had the old church pulled down without knowing where the relics lay; some sixty years later the relics were found incorrupt, and a new church was built in honor of the Hieromartyr Autonomus.
The site of his church in Bithynia remained known into later centuries and has been the subject of modern scholarship, including Clive Foss's study 'St. Autonomus and His Church in Bithynia' (Dumbarton Oaks Papers, 1987).