Prince Nicholas of Greece and Denmark was the son of which king that was assassinated in 1913?
George I of Greece George I (Greek: Γεώργιος Α΄ , "Geórgios I"; born Prince William of Schleswig-Holstein-Sonderburg-Glücksburg; 24 December 1845 – 18 March 1913) was King of Greece from 1863 until his assassination in 1913.
Serbian Blue Book The Serbian Blue Book is a collection of 52 Serbian diplomatic documents regarding events between 29 June and 6 August 1914, a period including the aftermath of the assassination of Archduke Ferdinand (the July Crisis) and the beginning of World War I, published by the Government of the Kingdom of Serbia on 18 November 1914. It includes correspondence between Serbian ministers and diplomats, Serbia and Russia (including royal), Austria-Hungary, and Germany. It was published in French translation in 1914, and English translation by the British Foreign Office in "Collected Diplomatic Documents Relating to the Outbreak of the European War", and also American Association for International Conciliation, in 1915.