Sixtus

the third of that name who occupied the papal chair, succeeded Coelestinus in A. D. 432, and died A. D. 440. He is known as an author merely from some formal letters possessing no particular interest. They will be found in the Epistolae Pontificum Romanorum of Coustant, vol. i. p. 1229. fol. Paris, 1721, and in the Bibliotheca Patrum of Galland, vol. ix. p. 518, fol. Venet. 1773. [W.R]