Queen Olga (1851-1926) and Princess Sophia (1870-1932)
Grand Duchess Olga Konstantinova, granddaughter of Tsar Nicholas I, became Queen of the Hellenes when she married King George I of Greece in 1867. As Queen, Olga was popular and engaged in extensive charitable works. She established the Red Cross movement in Greece.
During the war with Turkey in 1897 the Queen visited injured servicemen and moved by their position, she arranged for a translation of the Bible into modern Greek to be published. This provoked the Orthodox Church and eventually led to the collapse of the government in 1901. For the remainder of her life the position of the royal family in Greece was uncertain.
Crown Princess Sophia of Prussia, was born in Potsdam in Germany in 1870. She married Crown Prince Constantine of Greece in 1889.
Princess Sophia arranged for British trained nurses to come to Greece as tutors for Greek nurses. She was also involved with hospital relief during the Balkan Wars.
Queen Olga and Princess Sophia both attended Red Cross lectures and both were involved with nursing care as well as administrative duties and fund raising. Queen Victoria awarded the Royal Order of the Red Cross to both women.
This stamp was issued in Greece in 1939 commemorating the 25th anniversary of the ending of the First Balkan War (1912-14) and the contribution of Queen Olga and Princess Sophia throughout.
Reference
Olga Constantinova of Russia and Sophia of Prussia, entries from Wikepedia online, April 2007.