Debauve et Gallais Operating from the same small storefront on Rue des Saints-Pères since 1818, Debauve et Gallais is one of the oldest chocolatiers in Paris. In 1819, it was appointed the sole chocolate supplier of the French royal family, and from then on, created fine, handcrafted chocolates exclusively for Kings Louis XVIII, Charles X, and Louis-Philippe. In 1913, Debauve et Gallais began selling its chocolate to the public—in the same blue and gold-embossed box presented to royals. The chocolatier is best known for its decadent dark chocolate truffles, said to be favored by King Louis himself.