found on the fragment at Venice, San Giorgio Maggiore. The source Perugia Bib. Univ. Inv. 15755 N.F. was claimed to be from 1349 to 1354 according to its discoverers, but this date has been strongly disputed, and scholarly consensus is building that the manuscript is no earlier than other sources commonly dated to the 1390s. Still, this episode reflects the difficulties and uncertainties of dating all Trecento sources. Most of the later large sources stem from the area around Florence. Probably the oldest of the larger sources is the Panciatichi Codex (Florence, Biblioteca Nazionale Centrale di Firenze, Panciatichiano 26). The largest and most beautiful Trecento source is undoubtedly the brilliantly illuminated Squarcialupi Codex, compiled in the early 15th century, which, with 352 compositions (including 145 by Landini), is one of the largest music sources of the time from any region. The Reina Codex, "Pit." (Paris, Bibliothèque Nationale de France, ital. 568), the London Codex (British Library, Add. Ms 29987), and the Lucca/Mancini Codex are the other largest legible sources of Trecento music. (The palimpsest, San Lorenzo 2211, discovered in the 1980s, has been the subject of much recent scholarship though it is largely illegible). Substantial fragmentary manuscript sources from Padua, Cividale del Friuli, and from the area around Milan point to these areas as substantial areas of manuscript production as well. See also :Category:Trecento composers Further reading Michael Scott Cuthbert, "Trecento I: Secular Music," and "Trecento II: Sacred Music and Motets in Italy and the East from 1300 until the End of the Schism," (Chapters 35 and 36) in Cambridge History of Medieval Music, edited by Mark Everist and Thomas Forrest Kelly (Cambridge: Cambridge University Press, 2018), pp. 1079–1124. Michael Long, "Trecento Italy," in James McKinnon, ed., Antiquity and the Middle Ages, Man and Music (renamed: Music and Society) series. Englewood Cliffs, N.J.: Prentice Hall, 1991. pp. 241–268. References Trecento Renaissance music Italian music history 14th century in music