Beach Hotel Marienlyst was named after Frederik V's wife, Queen Juliane Marie (1729-1796), who built a wonderful French style castle just behind today’s hotel.
The hotel also attracted both King Christian IX (1818-1906) and his brother Prince Hans, who stayed every summer in the hotel's upscale room no. 15. The Russian Czar Alexander III had lunch with all his entourage including his Danish-born wife, Princess Dagmar, here, and the Prince of Wales enjoyed his dinner in the restaurant. Crown Prince Frederik, later King Frederik VIII (1843-1912), gave the hotel privileges to fly the royal Splitflag, use the royal crown in its logo and operate a gambling casino and thus, Casino Marienlyst became the first casino in Denmark.