Cains Sollins Modestns Sidonius Apollinaris, a Latin author and saint, born probably in Lyons about A. D. 431, died at Clermont in Auvergne, in 482 or 484. He was a diligent student, and early acquired a high reputation. He married a daughter of Flavins Avitus, afterward emperor, accompanied him to Rome in 45G, and pronounced his panegyric in verse before the senate, for which that body erected a bronze statue in his honor. He was prefect of Rome when Avitus was dethroned by Majorian. Sidonius pronounced at Lyons a public panegyric on the latter, by whom he was created a count and sent to govern the Gallic province of Aries. In 467 he went to Rome as ambassador of the Arverni, delivered a panegyric on the reigning emperor Anthemius, was made a patrician, and governor of the city a second time, and was honored with'a second statue. In 472 he was elected bishop of Clermont (Arvernum), though only a layman, accepted the office reluctantly, fulfilled its duties faithfully, and strenuously opposed the spread of Arianism. He left nine books of epistles of considerable historical interest, which, with his poems and panegyrics, were published in Milan in 1498 by Sirmond (Paris, 1614; republished by Labbe in 1052, the best edition), and by Migne in vol. lviii. of his Patrologie latine. - See Saint Sidoine Appollinaire et son siecle, by Chaix (2 vols., Clermont-Ferrand, 1867-8).