Marie of Romania (Marie Alexandra Victoria; 29 October 1875 – 18 July 1938), was the last Queen consort of Romania as the wife of King Ferdinand I.
Born into the British royal family, she was titled Princess Marie of Edinburgh at birth. Her parents were Prince Alfred, Duke of Edinburgh and Grand Duchess Maria Alexandrovna of Russia. After refusing a proposal from her cousin, the future King George V, she was chosen as the future wife of Crown Prince Ferdinand of Romania, the heir apparent of King Carol I, in 1892. Marie was Crown Princess between 1893 and 1914, the longest anyone has ever held that title, and became immediately popular with the Romanian people. Marie had controlled her weak-willed husband even before his ascension in 1914, prompting a Canadian newspaper to state that “few royal consorts have wielded greater influence than did Queen Marie during the reign of her husband”.
Even before her ascension as queen, Marie had succeeded in establishing her public image as that of “one of the best-looking and richest princesses in Europe”. She was known primarily for her talent in horse-riding, writing, painting, sculpting, dancing and for her beauty. Marie published 34 books and short stories, both in Romanian and English, during her lifetime. This included her critically acclaimed autobiography, “The Story of My Life”. From Wikipedia
This seems to be the Original Source for the pic. Exact location or date is not given.