During the persecutions of Christians, the remains of holy martyrs were buried by the faithful in secret places. In Constantinople, near the gates and tower known as the Eugenius Gates, many bodies of martyrs were buried, the names of whom remained unknown to the Church. When miraculous healings began to occur at this site, the relics of the saints were discovered and with great honor transferred to the church. It was revealed to the pious cleric Nicholas the Calligrapher that among the relics found in Eugenius were the relics of the holy apostle from the seventy, Andronicus, and his helper Junia, mentioned by the holy apostle Paul in his Epistle to the Romans (Romans 16:7). In the 12th century, a magnificent church was built on the site of the discovery of the relics of the holy martyrs by Emperor Andronicus (1183–1185), whose angel was the holy apostle Andronicus.
