Cazaux cites Nicolas Testart: p. 377 as haultcontre in the chapelle de musique at the time of the death of François I in 1547. Also clerc in the Sainte chapelle at least by 1540 and continuing after 1547. Originally from Rouen. Two chansons credited to Testart or Tetart in Attaingnant and Du Chemin imprints.