[2][3] In July 1778, Le Brun acquired the full hotel building and, by the mid-1780s, developed the Galerie Lebrun as an exhibition hall.

[7] The Galerie LeBrun was noted in the Journal de Paris as a space where students and amateurs could learn while the King's museum was under construction.

[8] An estate sale of the Comte de Vaudreuil's paintings, furniture, and porcelains took place at Le Brun's gallery in Paris on 26 November 1787.

[11] On 17 May 1826, the gallery held a major exhibition to raise funds for the War of Greek Independence called the Expositions au profit des Grecs.

Published that year, Les expositions de la galerie Lebrun, showcased the first catalog of prints from the gallery's modern art exhibition.