La Tour-du-Pin

La Tour-du-Pin grew around the castle of the family that bore its name, on the routes between Lyon and the Alps. In 1282 Humbert of La Tour-du-Pin inherited the title of dauphin of Viennois, bringing his family's lands into the expanding Dauphiné. His descendant Humbert II sold the principality to the French crown in 1349. The old baronial seat thus belonged to a territory whose rulers gave their title to the heirs of France.