Princess Charlene and Prince Albert have marked their 13th wedding anniversary with a touching tribute. The Palace of Monaco’s Instagram account shared a sweet snap of the pair looking over the palace balcony, accompanied by their two children who are standing in front of them. “Happy wedding anniversary to Their Highnesses Prince Albert II and Princess Charlene,” the photo shared to their 86,000 followers said. The couple famously wed in a lavish three-day ceremony at the Prince’s Palace in 2011, with fellow royals such as the Duke and Duchess of Edinburgh, as well as model Naomi Campbell, al…