Princess Sibylla of Saxe-Coburg and Gotha

Princess Sibylla of Saxe-Coburg and Gotha (18 January 1908 – 28 November 1972) was the mother of the current King of Sweden, Carl XVI Gustaf. A member of the House of Saxe-Coburg and Gotha, Sibylla became a Swedish princess by marrying Prince Gustaf Adolf, Duke of Västerbotten. On 19 October in Coburg, Sibylla married her second cousin Prince Gustaf Adolf of Sweden, Duke of Västerbotten, in a civil ceremony, followed by a church wedding the day after. Gustaf Adolf was the eldest son of Crown Prince Gustav Adolf of Sweden (later Gustaf VI Adolf) and Princess Margaret of Connaught, a granddaughter of Queen Victoria. Both Sibylla and Gustaf Adolf were great-grandchildren of Queen Victoria. Sibylla never became Crown Princess herself since her husband died before his grandfather (King Gustav V).

Lady Alice Montagu-Douglas-Scott

On 6 November 1935 Prince Henry, Duke of Gloucester; 3rd son of King George V and Queen Mary, married Lady Alice Montagu-Douglas-Scott, daughter of the duke of Buccleugh and Queensberry. The wedding was planned to take place in the Westminster Abbey but since the father of the bride died shortly before the wedding it was scaled down and they married in the Chapel Royal at St. James' palace

Elizabeth Bowes-Lyon

Elizabeth Angela Marguerite Bowes-Lyon (4 August 1900 – 30 March 2002) was the wife of King George VI and the mother of Queen Elizabeth II and Princess Margaret, Countess of Snowdon. She was Queen consort of the United Kingdom and the Dominions from her husband's accession in 1936 until his death in 1952, after which she was known as Queen Elizabeth The Queen Mother,^[2] to avoid confusion with her daughter. She was the last Empress of India. Prince Albert, Duke of York – "Bertie" to the family – was the second son of King George V. He initially proposed to Elizabeth in 1921, but she turned him down, being "afraid never, never again to be free to think, speak and act as I feel I really ought to".^[19] When he declared he would marry no other, his mother, Queen Mary, visited Glamis to see for herself the girl who had stolen her son's heart. She became convinced that Elizabeth was "the one girl who could make Bertie happy". They married on 26 April 1923, at Westminster Abbey

Wallis Simpson

Wallis, Duchess of Windsor (previously Wallis Simpson and Wallis Spencer, born Bessie Wallis Warfield; 19 June 1896^[1] – 24 April 1986) was an American socialite. Her third husband, Prince Edward, Duke of Windsor, formerly King Edward VIII, abdicated his throne to marry her. The King's desire to marry a woman who had two living ex-husbands threatened to cause a constitutional crisis in the United Kingdom and the Dominions, and ultimately led to his abdication in December 1936 to marry "the woman I love".^[3] After the abdication, the former king was created Duke of Windsor by his brother and successor, King George VI. Edward married Wallis six months later, after which she was formally known as the Duchess of Windsor, without the style "Her Royal Highness". She was instead styled as "Her Grace", a style normally reserved only for non-royal dukes and duchesses. Wallis and Edward married on 3 June 1937 at the Château de Candé, loaned to them by French millionaire Charles Bedaux.^[70] The date would have been King George V's 72nd birthday; Queen Mary thought the wedding had been scheduled for then as a deliberate slight.^[71] No member of Edward's family attended. Wallis wore a "Wallis blue" Mainbocher wedding dress

Edwina Mountbatten, Countess Mountbatten of Burma

Edwina Mountbatten, Countess Mountbatten of Burma was born Edwina Cynthia Annette Ashley in 1901, the elder daughter of Wilfred William Ashley, later 1st Baron Mount Temple (of the 1932 creation), who was a Conservative Member of Parliament.
Edwina Ashley was patrilineally descended from the Earls of Shaftesbury who had been ranked as baronets since 1622 and ennobled as barons in 1661. She was a great-granddaughter of the reformist 7th Earl of Shaftesbury through his younger son, The Hon. Evelyn Melbourne Ashley (1836–1907) and his wife, Sybella Farquhar (d. 1886), a granddaughter of the 6th Duke of Beaufort. From this cadet branch, the Ashley-Cooper peers would inherit the estates of Broadlands, and Classiebawn Castle in Sligo, Ireland.
On 8 July 1922  1922 lord Louis Mountbatten (until 1916 HSH Prince Louis of Battenberg), son of Prince Louis of Battenberg (Marquis of Milford Haven) and Princess Victoria of Hesse-Darmstadt, married Edwina Ashley, daughter of the future 1st Baron of Mount Temple and granddaughter of Sir Ernest Cassel. The couple married at St Margaret's, Westminster, London.
 The wedding was attended by more than 8,000 people, notably many members of the royal family, including Queen Mary, Queen Alexandra, David the Prince of Wales (the future King Edward VIII) and Prince Philip, and dubbed "wedding of the year". The reception was held in Brook House after which the couple rode a Rolls-Royce Silver Ghost to the bride's family's country house

Princess Friederike of Hanover

Frederica of Hanover (Frederica Louisa Thyra Victoria Margareta Sophie Olga Cécilie Isabelle Christa; Greek: Φρειδερίκη; pronounced [fri΄ðerici]; 18 April 1917 – 6 February 1981) was Queen consort of the Hellenes as the wife of King Paul of Greece.Frederica was born on 18 April 1917 in Blankenburg am Harz, Duchy of Brunswick, German Empire. She was the daughter of Ernest Augustus, Duke of Brunswick, and Princess Viktoria Luise of Prussia. As daughter of a Hanoverian prince, she was born a princess of Hanover, Great Britain and Ireland, and also a duchess of Brunswick-Lüneburg. However the Titles Deprivation Act was passed soon after her birth, and she lost her British titles. As a descendant of Queen Victoria, she was, at birth, 34th in the line of succession to the British throne.Prince Paul of Greece, her second cousin once removed, proposed to her during the summer of 1936, while he was in Berlin attending the 1936 Summer Olympics. Paul was the son of King Constantine I and Frederica's great-aunt Sophia. Their engagement was announced officially on 28 September 1937. They married in Athens on 9 January 1938. Frederica became Hereditary Princess of Greece, her husband being heir presumptive to his childless elder brother, King George II.

Princess Olga of Greece & Denmark

Princess Olga was born in Athens, Greece, on 11 June 1903. Her father was Prince Nicholas of Greece and Denmark, the third son of George I of Greece. Her mother was Grand Duchess Elena Vladimirovna of Russia, a granddaughter of Tsar Alexander II of Russia. Princess Olga married in Belgrade 22 October 1923 HRH Prince Paul of Yugoslavia, the regent after the assassination of King Alexander I of Yugoslavia