question: Who is the maternal grandfather of Prince Christian Of Hesse?
context: [["Prince Christian of Denmark (1675\u20131695)", ["Prince Christian of Denmark and Norway( 25 March 1675 \u2013 27 June 1695) was the third son of Christian V of Denmark and his consort, Charlotte Amalie of Hesse- Kassel, and thus a younger brother of King Frederick IV.", "He died aged 20, and never married."]], ["Prince Christian of Schaumburg-Lippe (1898\u20131974)", ["Prince Christian of Schaumburg- Lippe( 20 February 1898 \u2013 13 July 1974) was a German prince and head of the N\u00e1chod branch of the princely house of Schaumburg- Lippe.", "He was born in Sopron, Hungary, the only son and second child of Frederick of Schaumburg- Lippe( 1868 \u2013 1945) and his first wife Princess Louise of Denmark, younger sister of King Christian X of Denmark."]], ["Moritz, Landgrave of Hesse", ["Moritz, Prince and Landgrave of Hesse(\" Moritz Friedrich Karl Emanuel Humbert\" 6 August 1926 \u2013 23 May 2013) was the son of Prince Philip, Landgrave of Hesse, and the head of the House of Brabant and the German House of Hesse."]], ["Prince Waldemar of Schaumburg-Lippe", ["Prince Waldemar Stephen of Schaumburg- Lippe(\" Waldemar Stephan Ferdinand Wolrad Friedrich Karl\", b. 19 December 1940 in Glienicke) is a son of Prince Christian of Schaumburg- Lippe and Princess Feodora of Denmark, and the great- grandson of King Frederick VIII of Denmark."]], ["Christian of Oliva", ["Christian of Oliva, also Christian of Prussia( died 4 December 1245) was the first missionary bishop of Prussia."]], ["Princess Feodora of Denmark", ["Princess Feodora of Denmark( Feodora Louise Caroline- Mathilde Viktoria Alexandra Frederikke Johanne)", "( 3 July 1910 \u2013 17 March 1975) was a Danish princess as a daughter of Prince Harald of Denmark and granddaughter of Frederick VIII of Denmark.", "As the wife of Prince Christian of Schaumburg- Lippe she became a Princess of Schaumburg- Lippe by marriage."]], ["Princess Louise of Denmark (1750\u20131831)", ["Princess Louise of Denmark and Norway  (20 January 1750 \u2013 12 January 1831) was born to Frederick V of Denmark and Louise of Great Britain.", "Her eldest daughter, Marie of Hesse-Kassel, was the wife of Frederick VI of Denmark."]], ["Prince Christian of Hesse-Philippsthal-Barchfeld", ["Prince Christian of Hesse (\"Christian Ludwig Friedrich Adolf Alexis Wilhelm Ferdinand\"; 16 June 1889 \u2013 19 October 1971) was a member of the House of Hesse-Philippsthal-Barchfeld and a German naval officer until he resigned his commission during World War I in protest at Germany's policy of unrestricted submarine warfare.", "As a member of the House of Hesse, he was styled \"His Highness Prince Christian of Hesse\".", "In order to distinguish between the various branches of the house, the designation \"-Philippsthal-Barchfeld\" was sometimes added to the end of the princely title."]], ["Alessandra de Osma", ["Alessandra, Princess Christian of Hanover( n\u00e9e Alessandra de Osma) is a Peruvian attorney, handbag designer, and former model.", "She is a member of the Hanoverian royal family through her marriage to Prince Christian of Hanover."]], ["Prince Christian of Hesse", ["Prince Christian of Hesse  (14 August 1776 \u2013 14 November 1814) was a German prince and member of the House of Hesse-Kassel.", "As a son of the Danish Field Marshal Prince Charles of Hesse-Kassel and Princess Louise of Denmark, he was a member of the extended Danish Royal Family and spent his entire life in Denmark."]]]
supporting_facts: [["Prince Christian of Hesse", 1], ["Princess Louise of Denmark (1750\u20131831)", 0]]
evidences: [["Prince Christian of Hesse", "mother", "Princess Louise of Denmark"], ["Princess Louise of Denmark", "father", "Frederick V of Denmark"]]
answer: Frederick V of Denmark