 Made a baron of the empire in 1809 he nevertheless supported the Bourbon restoration and was minister of finance in 1814–1815.Baron Louis was deputy from 1815 to 1824 and from 1827 to 1832.He resumed the portfolio of finance in 1815, which he held also in the Decazes ministry of 1818; he was the first minister of finance under the government of Louis-Philippe, and held the same portfolio in 1831–1832.