PHOTO: EAST NEWS/AFP Princess Margarita, Queen Juliana's granddaughter and her fiance baron Edwin de Roy van Zuydewijn arrive at the Saint Marie cathedral in Auch to celebrate their wedding 22 September 2001.

Diana, Princess of Wales, is shown on her wedding day in St. Paul's Cathedral in London on July 29, 1981. (AP Photo)

Britain's Princess Alexandra and her husband Hon. Angus Ogilvy pose on the steps of the west door of Westminster Abbey, London, after their wedding, April 24, 1963. (AP Photo/Pool)

PHOTO: EAST NEWS/AFP The newly-wed Princess Margaret leaves hand in hand with her husband Antony Armstrong-Jones London's Westminster Abbey on their wedding day 06 May 1960. Armstrong-Jones was later created Earl Snowdon. They had two children, son David, and daughter Sarah, but announced their separation in March 1976. When the marriage was officially ended two years later, Margaret became the first royal to divorce since Henry VIII in the 16th century.

May 06, 1960 - London, England, UK - The PRINCESS MARGARET, Countess of Snowdon was the younger daughter of George VI and Queen Elizabeth, and the late younger sister of the current monarch of each of the Commonwealth Realms, Elizabeth II. She held the title Countess of Snowdon by marriage. PICTURED: Wedding day of PRINCESS MARGARET and ANTONY ARMSTRONG JONES. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

The royal couple to be married tomorrow, Austrian Archduke Charles of Habsburg, 31, and Belgian Princess Yolande de Ligne, 26, pose in their wedding costumes at Beloeil Castle, in Mons, Belgium, January 16, 1950, for the press. (AP Photo)

Nov 20, 1947 - London, UK - The elder daughter of King George VI and Queen Elizabeth, ELIZABETH WINDSOR (named Elizabeth II) PRINCE PHILIP, Duke of Edinburgh (born Prince Philip of Greece and Denmark) married on 20 November 1947. The wedding was seen as the first glimmer of hope in a post-war Commonwealth, and, though the royal couple received over 2,500 wedding gifts from around the world, rationing required that the Princess save up her ration coupons to buy the material for her wedding dress. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Nov 20, 1947 - London, UK - The elder daughter of King George VI and Queen Elizabeth, ELIZABETH WINDSOR (named Elizabeth II) PRINCE PHILIP, Duke of Edinburgh (born Prince Philip of Greece and Denmark) married on 20 November 1947. The wedding was seen as the first glimmer of hope in a post-war Commonwealth, and, though the royal couple received over 2,500 wedding gifts from around the world, rationing required that the Princess save up her ration coupons to buy the material for her wedding dress. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Nov 20, 1947 - London, UK - The elder daughter of King George VI and Queen Elizabeth, ELIZABETH WINDSOR (named Elizabeth II) PRINCE PHILIP, Duke of Edinburgh (born Prince Philip of Greece and Denmark) married on 20 November 1947. The wedding was seen as the first glimmer of hope in a post-war Commonwealth, and, though the royal couple received over 2,500 wedding gifts from around the world, rationing required that the Princess save up her ration coupons to buy the material for her wedding dress. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Wedding of Prince George, Duke of Kent and Princess Marina of Greece, showing the bride and bridegroom, with their Royal parents in London on Nov. 29, 1934. From left to right: King George V; Princess Elizabeth of York; Princess Elena of Greece (the bride's mother); the Royal bride and bridegroom; Lady Mary Cambridge (bridesmaid); the Queen, and Prince Nicholas of Greece. (AP Photo)

Formal picture following the wedding of Infanta Isabel Alfonsa of Spain, and Count Zemoisky Jan Kany of Poland, that took place in the Chapel of the Royal Palace, in Madrid, March 9, 1929. (AP Photo)

Germany's Princess Victoria zu Schaumburg-Lippe, 61, sister of Kaiser Wilhelm II, poses with her husband Russian adventurer Alexander Dvorjanin Zubkov, 27, after their wedding in Bonn, Germany, Nov. 22, 1927. (AP Photo)

Dutch Princess Hermine of Schonaich-Carolath in her wedding dress before her marriage to King William II of Prussia, in Doorn, Netherlands, Nov. 1, 1922. (AP Photo)