Louis-d'or

Louis-d'or (i.e. 'Golden Louis'), a gold coin which was introduced into France in 1641, and continued to be coined till 1795. The louis-d'or ranged in value from about 16s. 7d. to 18s. 9½d. sterling.—In some parts of Germany, in the old coinage, were gold pieces of five thalers, often popularly called louis-d'or, and the name has been occasionally applied to the French napoleon or 20-franc piece.