I have recently arranged some branles from Thoinot Arbeau's Orchésographie (1589), a study of French Renaissance social dance. (This sort of thing.) I always like to know what I'm playing and, not reading French (or even 16th century French!), I cannot find out whether Arbeau was a collector of the music he included, or a composer, or a bit of both.

Do any dancers or musicians have any clues, please?