There is very little known about them. Chrysanthus was an Egyptian, son of a Patrician, Polemius. He was brought to Rome from Alexandria during the reign of Numerian, and despite the objections of his father, who had brought him to Rome, was baptized by a priest named Carpophorus.

Chrysanthus refused his father’s attempts to get him married, finally married Daria, a Greek and a priestess of Minerva, converted her, and convinced her to live with him in chastity. When they converted a number of Romans, Chrysanthus was denounced as a Christian to Claudius, the tribune. Chrysanthus’ attitude under torture so impressed Claudius that he and his wife, Hilaria, two sons, and seventy of his soldiers became Christians, whereupon the Emperor had them all killed. Daria was sent to a brothel, where she was defended by a lion, brought before Numerian, who ordered her execution, and was stoned and then buried alive.

When several followers of Daria and Chrysanthus were found praying at their crypt, among them Diodorus, a priest, and Marianus, a deacon, they were all entombed alive. Their feast day is October 25.