Princess Sibylla of Saxe-Coburg-Gotha (1908-1972), 2nd child of eldest daughter of Charles Edward and Viktoria, Duke and Duchess of S-C-G. Sybilla married Gustaf Adolf of Sweden and is the mother of Carl Gustaf, current King of Sweden
U.K. King George V and Queen Mary. The House of Windsor is the royal house of the United Kingdom and the other Commonwealth realms. It was founded by King George V by royal proclamation on 17 July 1917, when he changed the name of his family from the German Saxe-Coburg and Gotha (a branch of the House of Wettin) to the English Windsor, due to the anti-German sentiment in the British Empire during World War I.
Princess Helen, Duchess of Albany with her first six grandchildren, from left: Prince Rupert of Teck, Princess Sibylla of Saxe-Coburg and Gotha, Prince Johann Leopold of Saxe-Coburg and Gotha, Prince Maurice of Teck, Prince Hubertus of Saxe-Coburg, and Gotha, and Princess May of Teck (the future Queen Mary - QEII's grandmother).
The Romanovs and the House of Windsor Queen Victoria's lifespan: 1819-1901 Prince Albert's lifespan: 1840-1861 Children: Edward VII | Victoria, Princess Royal, Princess Alice of the UK | Princess Beatrice of the UK | Alfred, Duke of Saxe-Coburg & Gotha | Princess Helena | Princess Louise, Duchess of Argyll | Prince Arthur, Duke of Connaught | Prince Leopold, Duke of Albany | Princess Beatrice http://en.wikipedia.org/wiki/Queen_Victoria