Georges d'Armagnac (1501?-1585) was a humanist, cardinal, and diplomat who served as ambassador to Venice between 1536-9, when he had the double portrait of himself and Guillaume Philandrier painted by Titian. He moved to Rome when he became a cardinal, and resided in a house near San Marcello and later rented the Villa Turini-Lante on the Janiculum. He returned to live in Toulouse and, later, Avignon.
Richard Cooper, Roman Antiquities in Renaissance France, 1515-65 (New York: Routledge, 2016), ch. 2.