LUXEMBOURG - JUNE 23: Prince Guillome, Princess Stephanie, Prince Felix, Princess Claire, Prince Louis, Princess Tessy, Princess Alexandra, Prince Sebastien, Grand Duchess Maria Teresa and Grand Duke Henri of Luxembourg assist National Day on June 22, 2015 in Luxembourg, Luxembourg. (Photo by Mark Renders/Getty Images)
Getty Images

Getty Images Entertainment Mark Renders

LUXEMBOURG - JUNE 23: Grand Duchesse Maria Teresa, Grand Duke Henri, Princess Claire, Prince Felix, Princess Stephanie, Prince Guillome, Princess Terry, Prince Felix, Prince Sebastien, Princess Alexandra of Luxembourg attend National Day on June 23, 2015 in Luxembourg, Luxembourg. (Photo by Mark Renders/Getty Images)
Getty Images

Getty Images Entertainment Mark Renders

LUXEMBOURG - JUNE 23: Grand Duchesse Maria Teresa, Grand Duke Henri, Princess Claire, Prince Felix, Princess Stephanie, Prince Guillome, Princess Terry, Prince Felix, Prince Sebastien, Princess Alexandra of Luxembourg attend National Day on June 23, 2015 in Luxembourg, Luxembourg. (Photo by Mark Renders/Getty Images)
Getty Images

Getty Images Entertainment Mark Renders

LUXEMBOURG - JUNE 23: Grand Duchesse Maria Teresa, Grand Duke Henri, Princess Claire, Prince Felix, Princess Stephanie, Prince Guillome, Princess Terry, Prince Felix, Prince Sebastien, Princess Alexandra of Luxembourg attend National Day on June 23, 2015 in Luxembourg, Luxembourg. (Photo by Mark Renders/Getty Images)
Getty Images

Getty Images Entertainment Mark Renders