It was completed within a month , during Ingres ' frequent visits to Bertin 's estate of retreat , Le Château des Roches , in Bièvres , Essonne . Ingres made daily visits , as Bertin entertained guests such as Victor Hugo , his mistress Juliette Drouet , Hector Berlioz , and later Franz Liszt and Charles Gounod . Ingres later made drawings of the Bertin family , including a depiction of his host 's wife and sketches of their son Armand and daughter @-@ in @-@ law , Cécile . The portrait of Armand evidence his physical resemblance to his father .