Saints Protus (Protatius, Proteus, Prothus, Prote, Proto or Saint Pratt) and Hyacinth (Hyacinthus, Hyacinthe; Jacinto; or Giacinto) (†257) were Christian martyrs during the persecution of Emperor Valerian. Tradition holds that Protus and Hyacinth were brothers who served as chamberlains to Saint Eugenia, and were baptized along with her by Helenus, Bishop of Heliopolis. Devoting themselves zealously to studying sacred scripture, they lived with the hermits of Egypt and later accompanied Eugenia to Rome. There, they were arrested for their Christianity by Emperor Gallienus (260–268). Refusing to deny their faith, they were first scourged and then beheaded. The chronographia mentions their graves in the Coemeterium of Basilla on the Via Salaria, later the Catacomb of St. Hermes. Their feastday is commemorated on September 11 by the Roman Catholic Church and December 24 by the Byzantine Catholic and Eastern Orthodox Churches.