Prince August of Saxe-Coburg and Gotha (13 June 1818 – 26 July 1881), married Princess Clémentine of Orléans on 21 April 1843. They had five children. Princess Victoria of Saxe-Coburg and Gotha (14 February 1822 – 10 December 1857), married Prince Louis, Duke of Nemours on 27 April 1840. They had four children.
Charles Edward spent his childhood years in the United Kingdom but was sent to Germany in his mid-teens, and received the final years of his education there, after in 1900 unexpectedly inheriting the throne of the Duchy of Saxe-Coburg and Gotha in the German Empire, due to the early deaths of his cousin Alfred, Hereditary Prince of Saxe-Coburg and Gotha, and his uncle Duke Alfred.
Kyril, Prince of Preslav, Duke in Saxony (born 11 July 1964), also known as Kyril of Saxe-Coburg, is the second son of Simeon Saxe-Coburg-Gotha, Prime Minister of Bulgaria from 2001 to 2005 and previously tsar of Bulgaria from 1943 to 1946, and Margarita Saxe-Coburg-Gotha