The Aix identification was first made in 1953 (by IP May, La Revue des Arts, 3) partly on the basis of a rather questionable signature on a book in the Brussels panel, but is generally accepted.
A identificación de Ais fíxose por vez primeira en 1953 (por IP May, La Revue des Arts, 3) en parte sobre a base dunha sinatura bastante cuestionable nun libro do plafón de Bruxelas.