Codex Turin J.II.9

This collection of plainchant, polyphonic mass movements, motets, and polyphonic chansons represents the sole source dateable to the early–15th century that is devoted exclusively to French music. The codex is also the largest corpus of French music from the period and contains music from the court of King Janus of Cyprus (1375–1432), who also titular King of Armenian Cilicia and Jerusalem from 1398–1432, and his second wife Charlotte de Bourbon (1388–1422). The manuscript also contains one of the oldest masses of a cantus firmus composed outside the British Isles, which was presumably copied in the area of Savoy. As such, these 334 compositions are of fundamental importance for the study of early–15th century music.