Wedding Of Crown Prince Frederik And Miss Mary Elisabeth Donaldson: Arrivals For The Gala Performance In The Royal Theatre In Copenhagen, Denmark On May 13, 2004. [Getty Images]

DENMARK - MAY 13: Wedding of Crown Prince Frederik and Miss Mary Elisabeth Donaldson: Arrivals for the gala performance in the Royal theatre in Copenhagen, Denmark on May 13, 2004 - Henri of Luxembourg and wife Maria Teresa of Luxembourg. (Photo by Pool BENAINOUS/DUCLOS/TRAVERS/Gamma-Rapho via Getty Images)

Gamma-Rapho Pool BENAINOUS/DUCLOS/TRAVERS