François-Joseph Double (1776–1842) was a French physician and co-founder of the Académie Nationale de Médecine.
[4] As a physician, he developed the accurate observation of the clinical signs of illness, and studied the unaided auscultation of respiratory and cardiac ailments.
[2] He listened to the heart and focused on problems of the heartbeat and unusual sounds, but he failed to link them to any specific ailment.
[3] King Louis Philippe I (1773-1850), who reigned from 1830 to 1848, offered him another peerage should he renounce his medical practise, but he refused.
His family owns the winery Château de Beaupré in Saint-Cannat, started in 1890 by Baron Emile Double (1869-1938).