In Verlaines's "Claire de Lune" he speaks of:
Que vont charmant masques et bergamasques
They play musical instruments, so one assumes them to be musical artists, but what exactly are masques and bergamasques?
The line is a bit of a pun. A "masque" is a masked ball, and in this case refers to the kind of music played at masques. The name actually has a somewhat convoluted history, originally referring to a masked drama in France, then to a stylized dance in Elizabethan England, and that use re-exported back to France.
Despite the name a "bergamasque" is not a kind of masque. The name comes from Bergamo, a city in Italy. It refers to the kind of music there, based on a folk dance. That dance is thus Bergamo-esque (bergamasco in Italian, and bergamasque in French, giving rise to Bergamask in English).
So "masques and bergamasques" puts together two styles of dance and music, both of which have Renaissance origins, even though the names are not actually related.