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.
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.