While this picture is widely circulated, it is almost never dated. But Rockabillyvixen advised 1887, worn for Queen Victoria's jubilee celebration. I am finding its difficult to get a reliable date even when perusing photo archive services.*** Continuing the Wikipedia narrative: In 1907, Alexandra and Dagmar purchased a villa north of Copenhagen, Hvidore, as a private getaway. In 1910, Alexandra was visiting her brother, George I of Greece, in Corfu when she received news that the King was seriously ill. Alexandra returned at once, and arrived just the day before her husband died. In his last hours, she personally administered him oxygen from a gas cylinder to help him breathe. She told Frederick Ponsonby, "I feel as if I had been turned into stone, unable to cry, unable to grasp the meaning of it all." Later that year, she moved out of Buckingham Palace to Marlborough House, but she retained possession of Sandringham; she did not attend her son's coronation in 1911 but otherwise continued the public side of her life, devoting time to her charitable causes, one of the most notable being Alexandra Rose Day, where artificial roses made by the disabled were sold in aid of hospitals by women volunteers. During the First World War, it is said that her son, George V, ordered all the Order of the Garter arms of those who fought for Germany removed from St. George's Chapel, Windsor at her insistence. A further reason for expelling the Germans from the Order of the Garter was that a Knight of the Garter swears an oath never to take up arms against the British Sovereign. During the First and Second World Wars, this became an embarrassing mockery, and the German members of the Order were expelled in 1915 in a solemn ceremony at St. George's Chapel. During the Second World War, Hirohito, the Emperor of Japan, was also expelled from the Order. Today, the Order of the Garter, the bestowing of which is the exclusive gift and prerogative of the Sovereign, is awarded much more sparingly. In Russia, Tsar Nicholas II was overthrown and he, his wife and children were killed by revolutionaries. The Dowager Empress, Dagmar, Alexandra's sister, was rescued from Russia in 1919 by a British warship, HMS Marlborough, and brought to England where she lived for some time with her sister.