When they walked down the aisle two months ago, the couple were among many other distinguished guests at William and Kate’s wedding.
Now the turn of Albert and Charlene is nigh in Monaco, beginning with the civil wedding later on Friday.
Press reports of a last-minute rift have been strongly denied by the palace. There have been suggestions that Charlene Wittstock came close to returning to South Africa after learning details of Prince Albert’s private life.
The palace said the rumours were simply aimed at undermining the happy event.
By later on Friday afternoon the quiet streets around the palace will be filled with people.
The short civil ceremony will see the 33-year-old former Olympic swimmer officially become “Princess of Monaco”.
The guest list includes other royalty and heads of state, as well as sports stars and fashion celebrities.
The reception an hour or so after the wedding will give the prince and his new bride the chance to mingle with the crowds ahead of Friday night’s show by Jean-Michel Jarre.