Machine translation of the 1948–1954 Italian original. The original text is authoritative.
CONSTANTIUS I (Flavius Valerius Constantinus), ROMAN EMPEROR, nicknamed CHLORUS. - Founder of the second Flavian dynasty, born in Illyricum, died at Eboracum (York) on 25 July 306. In 289 he was praefectus praetorio under Maximian, whose stepdaughter Theodora he had married; by her he had six children, while from his natural union with Helena, who likely professed the Christian faith or was inclined toward it, he had the future Constantine the Great. On 1 March 293 he was named Caesar in the tetrarchy established by Dio-
COSTANZO I - Medallion.
bus persecutorum, 14). Having become Augustus on May 1, 305, following the simultaneous abdication of Diocletian and Maximian, he continued the peaceful policy toward Christians. He fought again against the Picts and the Scots, but, in poor health, died shortly afterward, leaving the administration of his provinces to his son Constantine.
BIBL.: G. Pedrotti, Storia di C. C., Girgenti, 1904; L. Cantarelli, Per la storia dell'imperatore C. C., in Atti dell'Accad. pont. di arch. Memorie, 1 (1923), pp. 316-36; E. Stein, Geschichte des spätrömischen Reiches, I, Vienna 1928, pp. 98-125; J. Burckhardt, Die Zeit Constantins des Grossen, II, 3ª ed., Berlin 1929, pp. 33-78; R. Andreotti, C. C., in Didashaleion, 8 (1930, I), p. 156 ff.; 9 (1930, II), p. 1 ff.; R. Paribeni, Da Diocleziano alla caduta dell'Impero d'Occidente, Bologna [1941], pp. 46-48.
Agostino Amore
Cite this article
“COSTANZO I (FLAVIUS VALERIUS CONSTANTINUS), IMPERATORE ROMANO, SOPRANNOMINATO CLORO.” Enciclopedia Cattolica, vol. IV (1950), p. 456. Azione Romana digital edition, https://azioneromana.com/article/costanzo-i-flavius-valerius-constantinus-imperatore-romano-soprannominato-cloro.
