Queen Alexandra (1844-1925), queen consort to King Edward VII, late 19th century. Alexandra was also Empress of India during her husband's reign. Prior to that, she was Princess of Wales from 1863 to 1901 (the longest anyone has ever held that title). From 1910, until her death, she was the Queen Mother, being a queen and the mother of the reigning monarch, King George V. (Photo by The Print Collector/Print Collector/Getty Images)