sentences:  Louis Renault, a founder and the energetic hands-on owner of the "Société des Automobiles Renault", was one of several major automakers to have expanded production (of military supplies) and to have prospered during the war.At this point he already controlled factories on both banks of the river, and in 1919 he acquired the Île Seguin in the middle of it.Renault built his first factory on the island between 1929 and 1934.