The Maître of Mills was a Flemish painter, whose identity is the subject still of a debate, which exerted 1483 with 1500 near the court of the dukes of Bourbons.
Its most known realization is the triptych of the cathedral of Mills. The central panel represents a Vierge with the Child adored by angels. The side panels, as for them, are the portraits of the duke Pierre II and the duchess Anne of France with their daughter Suzanne.
Various attempts were carried out to identify the Master of Mills with known artists (such Jean Hay (or Jean Hey) or Jean Perréal), but any did not gain the general approval.

the english language version of Wikipédia tends to indicate that the Master of Mills formally was identified with Jean Hay/Hey, which few sources seem to be able to ensure with certainty.

External bonds

• Jean Hey in Artcyclopedia