Baring-Gould’s sources: Roman Martyrology and Greek Menaea: also Russian Kalendar, Leontius seems to have been venerated at a very early date, for mention of him as a saint is made in the life of S. Enthymius (Jan. aand), and Theodoret speaks of him as one of the great saints, and numbers him with SS. Peter, Paul, Thomas, Sergius, Marcellus, Antony, and Maurice. The Acts in Greek purport to be based on earlier Acts written on lead tablets by Cyrus, the commentariensis, or jailor. They were composed certainly after the accession of Constantine, probably from the official records, and from some memorials on lead, preserved at the tomb of the saints, and supposed to have been inscribed by their jailer, but altered in style, and amplified to suit the taste of a period which was not satisfied with simple narrative, but must have it embellished with long-winded declamation, pedantic arguments, and an accumulation of tortures and marvels. There are two forms of the Acts.] JAINT LEONTIUS was a soldier at Tripoli, in Phoenicia, who believed in Christ, and refused to sacrifice to the genius of the empire, and to the heathen gods. He converted Hypatius and Theodulus, two other officers, the former of whom he cured of fever. By order of Hadrian they were all three executed.