To remember to special ocassion, HELLO! Online takes a look back at one of Monaco's most iconic weddings. Attended by around 600 guests and watched by an estimated 30 million on television, it was dubbed "the wedding of the century".
The Hollywood beauty met Rainier during the Cannes Film Festival and eight months later, the couple were engaged. The lovebirds tied the knot on 19 April, 1956, in Monte Carlo, in a church ceremony and a civil ceremony the day before, as was customary in Monaco.