Santé! Just weeks after marking his first year as monarch, Charles carried out his second state visit with Camilla, travelling to France for three days. We love this snap of Their Majesties clinking glasses during a trip to Chateau Smith Haut Lafitte in Bordeaux.
Back when they were a family of four, Prince William and Kate were joined by their eldest children, Prince George and Princess Charlotte, on a royal tour to Germany and Poland. This photo was taken during a reception in Poland, where Kate wowed in a monochrome dress by Gosia Baczynska and pearl accessories.
Princess Anne accompanied King Felipe and Queen Letizia to a banquet at Guildhall during the Spanish state visit in 2017. The Princess Royal looked beautiful in an embroidered lavender gown with her diamond festoon tiara, while Queen Letizia was stunning in a one shouldered dark blue dress and the Spanish floral tiara.
The late Queen attended hundreds of state banquets and formal dinners during her 70-year reign, but she shared a particularly warm friendship with US President Ronald Reagan and his wife, Nancy.
The Queen and Prince Philip travelled to California for an official visit in 1983, where they were greeted by unusually bad weather.
During her speech at a formal dinner, the Queen made the President roar with laughter as she quipped: "I knew before we came that we had exported many of our traditions to the United States. But I had not realised before that weather was one of them."
Just weeks after their royal wedding in 2018, Prince Harry and Meghan visited Dublin, Ireland. The Sussexes attended a summer party at the British Ambassador's residence at Glencairn House, where Meghan looked gorgeous in a little black dress by Emilia Wickstead.
Denmark's Queen Margrethe and her late husband, Prince Henrik, share a toast with King Willem-Alexander and Queen Maxima of The Netherlands during a gala dinner in Denmark in 2015.