La Roche-sur-Yon (lä rôsh-sür-yôN), city (1990 pop. 48,518), capital of Vendée dept., W France, on the Yon River. A transportation and agricultural trade center, it also has industries producing automobile parts and other light manufactures. Founded in 1804 by Napoleon I as a town for non-Royalists, it was first named Napoléon-Vendée; under the Restoration (1814–48) it was called Bourbon-Vendée.
"Roche-sur-Yon, La." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (September 26, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/roche-sur-yon-la
"Roche-sur-Yon, La." The Columbia Encyclopedia, 6th ed.. . Retrieved September 26, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/roche-sur-yon-la