LUXEMBOURG - JUNE 22: Prince Sebastien and Princess Alexandra of Luxembourg celebrate National Day on June 21, 2016 in Luxembourg, Luxembourg. (Photo by Sylvain Lefevre/Getty Images)
LUXEMBOURG - JUNE 22: Prince Sebastien and Princess Alexandra of Luxembourg celebrate National Day on June 21, 2016 in Luxembourg, Luxembourg. (Photo by Sylvain Lefevre/Getty Images)