They ran a profitable business there but it was just a stepping stone to their success in Hesse-Homburg near Frankfurt, where the brothers signed a contract with the Landgrave to help service the debts of the city and to develop the tourism industry.

[citation needed] This allowed Bad Homburg to compete against the casinos of Paris which offered the traditional wheel with both single and double zero house pockets.

[1] The venture was a great success, Homburg became popular overnight with lots of entertainment, gambling houses, and hotels - the rich and famous came there for a new diversion and fun.

[2] Homburg could attract visitors only in the summer months, as during the winter tourists preferred to travel to warmer places.

[12][13] Through his daughter Marie-Félix, he was the grandfather of Princess Marie Bonaparte (1882–1962), who married Prince George of Greece and Denmark, the second son of George I of Greece and Olga Konstantinovna of Russia, and is remembered chiefly for having once saved the life of the future Emperor of Russia, Nicholas II in 1891 during their visit to Japan together.