Agnes was buried beside the Via Nomentana in Rome. A few days after her death, her foster-sister, Emerentiana, was found praying by her tomb; she claimed to be the daughter of Agnes' wet nurse, and was stoned to death after refusing to leave the place and reprimanding the pagans for killing her foster-sister. Emerentiana was also later canonised. The daughter of Constantine I, Constantina, was said to have been cured of leprosy after praying at Agnes' tomb. She and Emerentiana appear in the scenes from the life of Agnes on the 14th-century Royal Gold Cup in the British Museum.