Princess Thyra of Denmark (Thyra [ˈtʃuːrə] Amelia Caroline Charlotte Anne; Danish: Thyra Amalia Caroline Charlotte Anna) 29 September 1853 – 26 February 1933) was the youngest daughter of Christian IX of Denmark and Louise of Hesse-Kassel (or Hesse-Cassel).
Before her marriage, Thyra had fallen in love with Vilhelm Frimann Marcher, a lieutenant in the cavalry, which resulted in a pregnancy. Her brother George I of Greece suggested that she have the baby in Athens to avoid scandal; the Danish press was told Thyra had been taken ill with jaundice. She gave birth to a girl, Maria, on 8 November 1871 at Schloß Glücksburg, who was adopted by Rasmus and Anne Marie Jørgensen of Odense. Marcher killed himself on 4 January 1872 after a confrontation with the King.
|Princess Marie Louise of Hanover and Cumberland||11 October 1879||31 January 1948||married Prince Maximilian of Baden (10 July 1867-6 November 1929); had issue|
|Prince George William of Hanover and Cumberland||28 October 1880||20 May 1912|
|Princess Alexandra of Hanover and Cumberland||29 September 1882||30 August 1963||married Friedrich Franz IV, Grand Duke of Mecklenburg-Schwerin (9 April 1882-17 November 1945)|
|Princess Olga of Hanover and Cumberland||11 July 1884||21 September 1958|
|Prince Christian of Hanover and Cumberland||4 July 1885||3 September 1901|
|Prince Ernest Augustus of Hanover, Duke of Brunswick||17 November 1887||30 January 1953||married Princess Viktoria Luise of Prussia (13 September 1892-11 December 1980)|