A collection of ecclesiastical law, the elements of which are borrowed from secular and canon law
Nomocanon (from the Greek nomos, law, and kanon, a rule), a collection of ecclesiastical law, the elements of which are borrowed from secular and canon law. When we recall the important place given to ecclesiastical discipline in the imperial laws such as the Theodosian Code, the Justinian collections, and the subsequent "Novell", and "Basilica", the utility of comparing laws and canons relating to the same subjects will be readily recognized. Collections of this kind are found only in Eastern law. The Greek Church has two principal collections. The first, dating from the end of the sixth century, is ascribed, though without certainty, to John Scholasticus (q.v.), whose canons it utilizes and completes. He had drawn up (about 550) a purely canonical compilation in fifty titles, and later composed an extract from the "Novelli" in eighty-seven chapters (for the canonical collection see Voellus and Justellus, "Bibliotheca juris canonici", Paris, 1661, II, 449 sqq.; for the eighty-seven chapters, Pitra, "Juris ecclesiastici Gricorum historia et monumenta", Rome, 1864, II, 385). To each of the fifty titles were added the texts of the imperial laws on the same subject, with twenty-one additional chapters nearly all borrowed from John's eighty-seven (Voellus and Justellus, op. cit., II, 603). In its earliest form this collection dates from the reign of Emperor Heraclius (610-40), at which time Latin was replaced by Greek as the official language of the imperial laws. Its two sections include the ecclesiastical canons and the imperial laws, the latter in fourteen titles.
This collection was long held in esteem and passed into the Russian Church, but was by degrees supplanted by that of Photius. The first part of Photius's collection contains the conciliar canons and the decisions of the Fathers. It is in substance the Greek collection of 692, as it is described by canon ii of the Trullan Council (see Canon Law), with the addition of 102 canons of that council, 17 canons of the Council of Constantinople of 861 (against Ignatius), and of 3 canons substituted by Photius for those of the ecumenical council of 869. The nomocanon in fourteen titles was completed by additions from the more recent imperial laws. This whole collection was commentated about 1170 by Theodore Balsamon, Greek Patriarch of Antioch residing at Constantinople (Nomocanon with Balsamon's commentary in Voellus and Justellus, II, 815; P.G., CIV,441). Supplemented by this commentary the collection of Photius has become a part of the "Pidalion" (Irrl5ciXto', rudder), a sort of Corpus Juris of the Orthodox Church, printed in 1800 by Patriarch Neophytus VIII. In the eleventh century it had been also translated into Slavonic for the Russian Church; it is retained in the law of the Orthodox Church of Greece, and included in the "Syntagma" published by Rhallis and Potlis (Athens, 1852-9). Though called the "Syntagma", the collection of ecclesiastical law of Matthew Blastares (c. 1339) is a real nomocanon, in which the texts of the canons and of the laws are arranged in alphabetical order (P.G., loc. cit.; Beveridge, "Synodicon", Oxford, 1672). A remarkable nomocanon was composed by John Barhebraus (1226-86) for the Syrian Church of Antioch (Latin version by Assemani in Mai, "Script. vet. nova collectio", X, 3 sqq.). Several Russian manuals published at Kiev and Moscow in the seventeenth century were also nomocanons.