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.
Prince Gorm of Denmark Prince Gorm of Denmark (Danish: "Prins Gorm Christian Frederik Hans Harald til Danemark til Ísland" ; b. Jægersborghus, 24 February 1919 – Copenhagen, 26 December 1991) was the first son of Prince Harald of Denmark and his wife, Princess Helena Adelaide of Schleswig-Holstein-Sonderburg-Glücksburg.