MONACO - APRIL 18: Crowds gather for a reception, after the couple's civil ceremony, the newlyweds hosted a reception for the citizens of Monaco on April 18, 1956 in Monaco.(Photo by REPORTERS ASSOCIES/Gamma Features via Getty Images )
MONACO - APRIL 18: Crowds gather for a reception, after the couple's civil ceremony, the newlyweds hosted a reception for the citizens of Monaco on April 18, 1956 in Monaco.(Photo by REPORTERS ASSOCIES/Gamma Features via Getty Images )