Christian X of Denmark

Frederick William George Adolphus, Landgrave of Hesse (German: Friedrich Wilhelm Georg Adolf von Hessen-Kassel; 25 November 1820 – 14 October 1884) was the only son of Wilhelm I, Landgrave of Hesse-Kassel-Rumpenheim and Princess Louise Charlotte of Denmark.

Charles XV also Carl (Carl Ludvig Eugen); Swedish: Karl XV and Norwegian: Karl IV (3 May 1826 – 18 September 1872) was King of Sweden (Charles XV) and Norway, there often referred to accurately as Charles IV, from 1859 until his death. Though known as King Charles XV in Sweden (and also on contemporary Norwegian coins), he was actually the ninth Swedish king by that name, as his predecessor Charles IX (reigned 1604–1611) had adopted a numeral according to a fictitious history of Sweden.

Oscar I (born Joseph François Oscar Bernadotte; 4 July 1799 – 8 July 1859) was King of Sweden and Norway from 8 March 1844 until his death. He was the second monarch of the House of Bernadotte.

Princess Ragnhild, Mrs Lorentzen (Ragnhild Alexandra; 9 June 1930 – 16 September 2012), was the eldest child of King Olav V of Norway and Princess Märtha of Sweden. She was the older sister of King Harald V and Princess Astrid. She was the first royal to have been born in Norway since the middle ages. In 1953 she married the industrialist Erling Lorentzen, a member of the Lorentzen family of shipping magnates. In the same year they moved to Brazil, where her husband was an industrialist and a main owner of Aracruz Celulose. She lived in Brazil until her death 59 years later.

Oscar II (Oscar Fredrik; 21 January 1829 – 8 December 1907) was the King of Sweden from 1872 until his death, and was also the final King of Norway from the House of Bernadotte until being deposed in 1905.