Codex gregorianus
Codex gregorianus a collection of imperial Roman constitutions or enactments made by one Gregorianus, of whom nothing else is known; its date is not earlier than A.D. 295, as it contained an exemplum edicti Diocletiani et Maximiani of that year (Coll. leg. Mos. et Rom. 6.4). It comprised enactments of the emperors between Septimius Severus (A.D. 195) and Diocletian and Maximian (A.D. 285-305), and possibly even some as far back as Hadrian (A.D. 117-138). It was divided into Books, at least thirty in number (Fragm. Vat. §§ 266 a, 272, 285-8), and the Books into Titles and Rubrics, the topics being arranged after the order of the perpetual Edict of Salvius Julianus.
From William Smith (ed.), Dictionary of Greek and Roman Antiquities. 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.