The event kicked off the second day of festivities in the small seaside nation of 33,000, where a holiday has been declared to celebrate the wedding of Charlene Wittstock, a former Olympic swimmer, and Prince Albert.
The 3,500 guests -- which include 20 heads of state, fellow royals and a number of moguls and celebrities -- began to arrive hours earlier Saturday afternoon at the palace, the same place where one day earlier the couple's civil ceremony had taken place.
They walked through Palace Square into the courtyard, passing hundreds of onlookers who followed the nuptials on a pair of giant screens.
The last one to stroll the carpet, just before 5 p.m., was Wittstock herself. Her white wedding gown was designed by Giorgio Armani, according to the fashion designer's Facebook page.