GELASIO of CIZICO. — Son of a presbyter, he wrote around 475 an Ecclesiastical History in 3 books, a compilation from Eusebius, Theodoret, and Socrates. The value of the new documents contained in his work is debated; some are authentic, others are not. According to some, the ecclesiastical history of Gelasius of Caesarea would have been one of the sources of our author.
BIBL.: Ed.: G. Loeschcke, M. Heinemann, in Die griechischen christlichen Schriftsteller der ersten drei Jahrhunderte, XXVIII, Lipola 1918. — Studies: G. Loeschcke, Das Syntagma des Gelasius Cyclicans, Bonn 1906; A. Glas, Die Kirchengeschichte des Gelasius von Kaiserna (Byzantinisches Archiv, 6), Lipola 1914; G. Mercati, Opera minori, IV, Città del Vaticano 1937, p. 56 ff.; V. also C. H. Turner, On Gelasius of Cynican, in Journal of theol. studies, 1 (1890), p. 125 ff. Erik Peterson