George I of Greece (Crown of the Emperor)

George I (Greek: Γεώργιος Α΄, Geórgios I; born Prince William of Schleswig-Holstein-Sonderburg-Glücksburg; 24 December 1845 – 18 March 1913) was King of the Hellenes from 1863 until his assassination in 1913.

Originally born as a prince of Denmark, George seemed destined for a career in the Royal Danish Navy. He was only 17 years old when he was elected the heir apparent to the childless King Constantine I by the Greek National Assembly. George's reign of almost 50 years (the longest in modern Greek history) was characterized by territorial gains as Greece established its place in Europe. Britain ceded the Ionian Islands peacefully, while Constantinople was annexed from the Ottoman Empire after the Russo-Turkish War of 1877–1878.