EXCERPT FROM THE LEICHIAN ADVERSARIA
From the *Bibliotheca Graeca* of Fabricius, concerning the manuscript codex of the *Ceremonial* of Constantine, by Conrad Zacharias Uffenbach: It exists above at column 29.
FROM THE LEICHIAN ADVERSARIA. ON THE WRITINGS OF CONSTANTINE PORPHYROGENITUS.
It is said that he gathered many books and caused excerpts to be made from them A in the Escorial. Montfaucon, *Bibliotheca manuscriptorum*, p. 623. See the preface to the *Excerpta Legationum*, edited by Hoeschel. Compare the preface to *Continuatio Theophanis*, p. 2. *Scriptores post Theophanem*. Genesius dedicated his *History* on the life of Basil and other emperors to Constantine Porphyrogenitus. A compendium of laws, chosen from the Institutes, Digests, etc., was composed by the emperor Leo the Wise and Constantine Porphyrogenitus. Lambecius, lib. V, c. 8. In codex LXIV of the Venetian Library there exists a compendium of the laws of Leo and Constantine, written in the year 1175. Theophanes' *Compendiary Synopsis of the Medical Art*, collected chiefly from the writings of Oribasius and divided into seven books, was compiled by the persuasion of the emperor Constantine Porphyrogenitus. Lambecius, 24. *Manuscripta juridica*, compare Psellus. Psellus' *Synopsis of the Medical Art* to Constantine. Muratori, vol. II, *Antiquitates Italicae*, dissertation 26, reviews unpublished tactical authors of the Ambrosian Library, among whom occur the *Naumachica* of Leo, unpublished. *Naumachica* by Basil the Patrician and Parakoimomenos. In another codex, *Tactics of Constantine Porphyrogenitus*. His *On Naval Warfare, Stratagems, and Piracy*, etc. Tactical works without a name, which occur in the Laurentian codex (Montfaucon, vol. I, p. 344), belong to the emperor Constantine. Just as Constantine wrote several things concerning military affairs, so most of the books of the emperor Maximilian pertain to hunting and military matters. Lambecius, p. 183. An anonymous addition to Constantine's work on the image of Edessa is in codex 14, lib. VIII, of Lambecius. The ecclesiastical constitutions of Romanus and Constantine are in the Ambrosian Library. See Montfaucon, *Bibliotheca Manuscriptorum*, p. 625.
FROM THE SAME ADVERSARIA, CERTAIN COLLECTANEA CONCERNING THE LIFE OF CONSTANTINE AND THIS CEREMONIAL CODEX.
Regarding the granddaughters of Constantine Porphyrogenitus through his son Romanus and their genealogy, see Eccard, *De stemmate principum Saxoniae superioris*. The passage in the *Chronicon Vulturnense* does not agree with other authors regarding the affairs of Constantine, p. 333. In the parchment codex N. T. at Basel, there occurs an image of Constantine Porphyrogenitus and Leo with some Greek verses. Wetstein, *Prolegomena ad N. T.*, p. 55. Cf. Theodore Studites, p. 170, ed. Sirmondi. A subscription in the book of Olympiodorus in the Venetian Library, p. 2: "By the God-assisted reign of Leo and Alexander, the orthodox and Christ-loving emperors of the Romans." Therefore, Leo and Alexander held the empire jointly in the year 905. B Concerning the ceremonies in general, see *Museum Italicum*, vol. II, p. 584. Maii, in his *Observationes ad N. T.*, has certain things from the *Ceremonial* of the emperor Constantine. See *Bibliotheca Uffenbachiana*, p. 538, and concerning its edition, *Histoire Critique de la république des lettres*, vol. XI, p. 333, vol. XIII, p. 345. The Leipzig codex of Constantine Porphyrogenitus is similar to the specimen of the tenth century which is seen in the *Catalogus manuscriptorum Graecorum Bibliothecae Venetae*, p. 3. The customs and regulations of the emperors of Constantinople are in the Ambrosian Library, p. 485. Montfaucon, *Bibliotheca Manuscriptorum*, p. 623. Codices concerning the offices of the imperial court: *Catalogus Bibliothecae Venetae S. Marci*, p. 105.