La muy probable identificación del chantre Johan Robert con el compositor Trebor permite relacionar un significativo número de composiciones del códice Chantilly con Juan I de Aragón y su segunda esposa, Violante de Bar, cuya corte jugó un importante papel de mecenazgo musical a fines del Medioevo
The highly probable identification of the chapel singer
Johan Robert with Trebor, the composer, allows to relate several items of the Chantilly
Codex with John I of Aragon and his second wife, Yolande of Bar. Their court displayed a
significant role of musical patronage at the very end of the Middle Ages.