Monaco royals celebrate National Day Prince Albert II of Monaco with his wife Princess Charlene look out from the Monaco palace, during Monaco's national day ceremony, in Monaco, Nov. 19, 2012. / AP Photo/Lionel Cironneau The Monaco royals celebrated the country's 156th anniversary on National Day on Monday. 22 Photos Princess Charlene and Prince Albert II were in attendance for the days festivities which started with a religious service.. Charlene wore an Akris navy blue coat dress and a hat with a lace overlay. Princess Charlotte Casiraghi, who is also the face of Gucci, wore a navy and black ensemble topped off with a black wide-brimmed hat. Last year was Princess Charlene's first National Day after her marriage to Prince Albert II.