A church erected on the site of their burial was enlarged by the emperor Justinian. Devotion to the two saints spread rapidly in both East and West, and a famous basilica was erected in their honor in Constantinople. Their names were placed in the Roman Canon probably in the sixth century.
Legend says that they were twin brothers born in Arabia who were both skilled doctors. They were among those who are venerated in the East as the “moneyless ones” because, purportedly, they did not charge a fee for their services.
