tour on which an official photographer, Francis Bedford, was in attendance. As soon as Edward returned to Britain, preparations were made for his engagement, which was sealed at Laeken in Belgium on 9 September 1862. Edward married Alexandra of Denmark at St George's Chapel, Windsor Castle, on 10 March 1863. He was 21; she was 18. The couple established Marlborough House as their London residence and Sandringham House in Norfolk as their country retreat. They entertained on a lavish scale. Their marriage met with disapproval in certain circles because most of Queen Victoria's relations were German, and Denmark was at loggerheads with Germany over the territories of Schleswig and Holstein. When Alexandra's father inherited the throne of Denmark in November 1863, the German Confederation took the opportunity to invade and annex Schleswig-Holstein. The Queen was of two minds as to whether it was a suitable match, given the political climate. After the marriage, she expressed anxiety about their socialite lifestyle and attempted to dictate to them on various matters, including the names of their children. Edward had mistresses throughout his married life. He socialised with actress Lillie Langtry; Lady Randolph Churchill; Daisy Greville, Countess of Warwick; actress Sarah Bernhardt; noblewoman Lady Susan Vane-Tempest; singer Hortense Schneider; prostitute Giulia Beneni (known as "La Barucci"); wealthy humanitarian Agnes Keyser; and Alice Keppel. At least fifty-five liaisons are conjectured. How far these relationships went is not always clear. Edward always strove to be discreet, but this did not prevent society gossip or press speculation. Keppel's great-granddaughter, Camilla Parker Bowles, became the mistress and subsequent wife of King Charles III, Edward's great-great-grandson. It was rumoured that Camilla's grandmother, Sonia Keppel, was fathered by Edward, but she was "almost certainly" the daughter of George Keppel, whom she resembled. Edward never acknowledged any illegitimate children. Alexandra was aware of his affairs, and seems to have accepted them. In 1869, Sir Charles Mordaunt, a British Member of Parliament, threatened to name Edward as co-respondent in his divorce suit. Ultimately, he did not do so but Edward was called as a witness in the case in early 1870. It was shown that Edward had visited the Mordaunts' house while Sir Charles was away sitting in the House of Commons. Although nothing further was proven and Edward denied he had committed adultery, the suggestion of impropriety was damaging. Heir apparent During Queen Victoria's widowhood, Edward pioneered the idea of