In the United Kingdom, Princess Anne marries Captain Mark Phillips, in Westminster Abbey.

Anne, Princess Royal, is a member of the British royal family. She is the second child and only daughter of Queen Elizabeth II and Prince Philip, Duke of Edinburgh, and the only sister of King Charles III. Anne was born third in the line of succession to the British throne and is now 18th, and has been, since 1987, Princess Royal, a title held for life.

Captain (Capt) is a junior officer rank of the British Army and Royal Marines and in both services it ranks above lieutenant and below major with a NATO ranking code of OF-2. The rank is equivalent to a lieutenant in the Royal Navy and to a flight lieutenant in the Royal Air Force. The rank of captain in the Royal Navy is considerably more senior and the two ranks should not be confused.

Mark Anthony Peter Phillips is an English Olympic gold medal-winning horseman for Great Britain and the first husband of Anne, Princess Royal, with whom he has two children. He remains a leading figure in British equestrian circles, a noted eventing course designer, and a columnist for Horse & Hound magazine.

Westminster Abbey, formally titled the Collegiate Church of Saint Peter at Westminster, is an Anglican church in the City of Westminster, London, England. Since 1066, it has been the location of the coronations of 40 English and British monarchs and a burial site for 18 English, Scottish, and British monarchs. At least 16 royal weddings have taken place at the abbey since 1100.