Companions of Dionysius the Areopagite
The two martyrs are remembered primarily through their association with Saint Dionysius the Areopagite, whom the Apostle Paul appointed bishop of Athens. The fuller synaxarion tradition relates that Dionysius was accompanied in his ministry by the Presbyter Rusticus and the Deacon Eleutherius, and that the three were seized and beheaded together under Domitian.
Their feast is kept on October 3 alongside Dionysius, and Rusticus and Eleutherius are venerated as the clergy who stood with him to the end.