The ''Codex Gregorianus'' (Eng. Gregorian Code) is the title of a collection of
constitutions
A constitution is the aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organisation or other type of entity and commonly determine how that entity is to be governed.
When these pr ...
(legal pronouncements) of
Roman emperors over a century and a half from the 130s to 290s AD. It is believed to have been produced around 291–4 but the exact date is unknown.
["Codex Gregorianus" in '' The Oxford Dictionary of Byzantium'', ]Oxford University Press
Oxford University Press (OUP) is the university press of the University of Oxford. It is the largest university press in the world, and its printing history dates back to the 1480s. Having been officially granted the legal right to print book ...
, New York & Oxford, 1991, p. 474.
History

The Codex takes its name from its author, a certain Gregorius (or Gregorianus), about whom nothing is known for certain, though it has been suggested that he acted as the ''magister libellorum'' (drafter of responses to petitions) to the emperors
Carinus and
Diocletian in the 280s and early 290s. The work does not survive intact and much about its original form remains obscure, though from the surviving references and excerpts it is clear that it was a multi-book work, subdivided into thematic headings (''tituli'') that contained a mixture of
rescripts to private petitioners, letters to officials, and public edicts, organised chronologically.
Scholars' estimates as to the number of books vary from 14 to 16, with the majority favouring 15. Where evidence of the mode of original publication is preserved, it is overwhelmingly to posting up, suggesting that Gregorius was working with material in the public domain.
Reception
In the fourth and fifth centuries, for those wishing to cite imperial constitutions, the ''Codex Gregorianus'' became a standard work of reference, often cited alongside the ''
Codex Hermogenianus
The ''Codex Hermogenianus'' (Eng. Hermogenian Code) is the title of a collection of constitutions (legal pronouncements) of the Roman emperors of the first tetrarchy ( Diocletian, Maximian Augusti, and Constantius and Galerius Caesars), mostly f ...
''. The earliest explicit quotations are by the anonymous author of the ''Mosaicarum et Romanarum Legum Collatio'', or ''Lex Dei'' as it is sometimes known, probably in the 390s. In the early fifth century
Augustine of Hippo
Augustine of Hippo ( , ; la, Aurelius Augustinus Hipponensis; 13 November 354 – 28 August 430), also known as Saint Augustine, was a theologian and philosopher of Berber origin and the bishop of Hippo Regius in Numidia, Roman North A ...
cites the Gregorian Code in discussion of adulterous marriages. Most famously, the Gregorian and Hermogenian Codes are cited as a model for the organisation of imperial constitutions since
Constantine I in the directive ordering their collection in what was to become the ''
Codex Theodosianus
The ''Codex Theodosianus'' (Eng. Theodosian Code) was a compilation of the laws of the Roman Empire under the Christian emperors since 312. A commission was established by Emperor Theodosius II and his co-emperor Valentinian III on 26 March 429 ...
'', addressed to the senate of Constantinople on 26 March 429, and drafted by
Theodosius II
Theodosius II ( grc-gre, Θεοδόσιος, Theodosios; 10 April 401 – 28 July 450) was Roman emperor for most of his life, proclaimed ''augustus'' as an infant in 402 and ruling as the eastern Empire's sole emperor after the death of his ...
's ''quaestor''
Antiochus Chuzon.
In the post-Theodosian era both Codes are quoted as sources of imperial constitutions by the mid-fifth-century anonymous author of the ''Consultatio veteris cuiusdam iurisconsulti'' (probably based in Gaul); are cited in marginal cross-references by a user of the ''
Fragmenta Vaticana''; and in notes from an eastern law school lecture course on Ulpian's ''Ad Sabinum''.
In the Justinianic era, the ''antecessor'' (law professor) Thalelaeus cited the Gregorian Code in his commentary on ''
Codex Justinianus''. In the west, some time before 506, both codices were supplemented by a set of clarificatory notes (''interpretationes''), which accompany their abridged versions in the
Breviary of Alaric, and were cited as sources in the ''Lex Romana Burgundionum'' attributed to
Gundobad, king of the Burgundians (473–516).
Eclipse
Texts drawn from the ''Codex Gregorianus'' achieved status as authoritative sources of law simultaneously with the original work's deliberate eclipse by two codification initiatives of the sixth century. First, the abridged version incorporated in the
Breviary of Alaric, promulgated in 506, explicitly superseded the original full text throughout Visigothic Gaul and Spain. Then, as part of the emperor
Justinian
Justinian I (; la, Iustinianus, ; grc-gre, Ἰουστινιανός ; 48214 November 565), also known as Justinian the Great, was the Byzantine emperor from 527 to 565.
His reign is marked by the ambitious but only partly realized '' renova ...
's grand codificatory programme, it formed a major component of the
Codex Justinianeus, which came into force in its first edition across the Roman Balkans and eastern provinces in AD 529. This was subsequently rolled out to Latin north Africa, following its reconquest from the Vandals in 530, and then Italy in 554. So, by the mid sixth century the original text of the Gregorian Code had been consigned to the dustbin of history over most of the Mediterranean world. Only in Merovingian and Frankish Gaul were copies of the full version still exploited between the sixth and ninth centuries, as attested by the appendices to manuscripts of the ''Breviary''.
Legacy

It is because of its exploitation for the ''Codex Justinianeus'' that the influence of Gregorius' work is still felt today. As such, it formed part of the
Corpus Juris Civilis of the revived medieval and early modern Roman law tradition. This in turn was the model and inspiration for the
civil law
Civil law may refer to:
* Civil law (common law), the part of law that concerns private citizens and legal persons
* Civil law (legal system), or continental law, a legal system originating in continental Europe and based on Roman law
** Private la ...
codes that have dominated European systems since the
Code Napoleon of 1804.
Editions
There has been no attempt at a full reconstruction of all the surviving texts that probably derive from the ''CG'', partly because of the difficulty of distinguishing with absolute certainty constitutions of Gregorius from those of Hermogenian in the ''Codex Justinianeus'' in the years of the mid 290s, where they appear to overlap.
Tony Honoré (1994) provides the full text of all the private rescripts of the relevant period but in a single chronological sequence, not according to their possible location in the ''CG''. The fullest edition of ''CG'' remains that of Haenel (1837: 1–56), though he included only texts explicitly attributed to ''CG'' by ancient authorities and so did not cite the ''CJ'' material, on the grounds that it was only implicitly attributed. Krueger (1890) edited the Visigothic abridgement of ''CG'', with its accompanying ''interpretationes'' (pp. 224–33), and provided a reconstruction of the structure of the ''CG'', again excluding ''CJ'' material (pp. 236–42), inserting the full text only where it did not otherwise appear in the ''Collectio iuris Romani Anteiustiniani''. Rotondi (1922: 154–58), Scherillo (1934), and Sperandio (2005: 389–95) provide only an outline list of the titles, though the latter offers a useful concordance with Lenel's edition of the ''Edictum Perpetuum''. Karampoula (2008) conflates the reconstructions of Krueger (1890) and Rotondi (1922) but provides text (including Visigothic ''interpretationes'') in a modern Greek version.
Rediscovery
On 26 January 2010,
Simon Corcoran and
Benet Salway at University College London announced that they had discovered seventeen fragments of what they believed to be the original version of the code.
See also
*
List of Roman laws
Notes
Bibliography
*
*
* , cols 1–80
*
*
*
*
*
*
{{DEFAULTSORT:Gregorianus
Roman law
290s in the Roman Empire
3rd-century Latin books
Roman law codes