Kong Christian IX (8. april 1818 – 29. januar 1906 var konge af Danmark fra 1863 til 1906 samt hertug af Slesvig, Holsten og Lauenborg fra 1863 til 1864.
Christian giftede sig med sin halvkusine, Prinsesse Louise af Hessen, i 1842. Deres seks børn giftede sig ind i flere af Europas fyrstehuse og skaffede Christian 9. tilnavnet Europas svigerfar.
King Christian IX of Denmark (April 8, 1818 - January 29, 1906 was King of Denmark from 1863 to 1906 as well as Duke of Schleswig, Holstein and Lauenborg from 1863 to 1864.
Christian married his half-cousin, Princess Louise of Hesse, in 1842. Their six children married into several of Europe's princely homes and gave Christian 9. the nicknamed Europe's father-in-law.
King Christian IX and Queen Louise had six children:
married 28 July
married 10 March
married 27 October 1867 to:
married 9 November 1866 to:
married 22 December 1872 to:
married 22 October 1885 to:
son of Prince Christopher: