The first documented use of polyphony in Brussels, at the collegiate church of Ste Gudule.[4]
1360
January – Two motets by Guillaume de Machaut, No. 21 Veni, creator spiritus and No. 23 Inviolata genitrix, are composed in response to the Siege of Reims.[5]
after 1360 – Guillaume de Machaut motet No. 21 "Plange, regni respublica / Tu qui gregem tuum ducis / Apprehende arma et scutum et exurge"
1369 – Johannes Vaillant's double-texted (ballade) for three voices, Dame doucement trait / Doulz amis de cuer parfait, was copied in Paris (compilatum fuit parisius) into the Chantilly Codex (fol. 26v), and thus likely was composed in that year.[6]
Wulf Arlt, "Machaut [Machau, Machault], Guillaume de [Guillelmus de Machaudio]", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
Kurt von Fischer and Gianluca D’Agostino, "Niccolò da Perugia [Nicolaus de Perugia, Magister Sere Nicholaus Prepositi de Perugia, Niccolò del Proposto, Ser Nicholo del Proposto]", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).
Robert Wangermée and Henri Vanhulst, "Brussels", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie and John Tyrrell (London: Macmillan Publishers, 2001).