Louis Ni·co·las /lwi nikɔˈlɑ/Show Spelled[lwee nee-kaw-lah]Show IPA, Duke of Au·er·stadt /ˈaʊərˌstæt/Show Spelled[ou-er-stat]Show IPA, Prince of Eck·mühl /ˈɛkmyul/Show Spelled[ek-myool]Show IPA, 1770–1823, marshal of France: one of Napoleon's leading generals.