Friedrich Josias, Prince of Saxe-Coburg and Gotha
Friedrich Josias, Prince of Saxe- Coburg and Gotha( Friedrich Josias Carl Eduard Ernst Kyrill Harald; 29 November 1918 – 23 January 1998) was the head of the Ducal Family of Saxe- Coburg and Gotha and titular Duke of Saxe- Coburg and Gotha from 1954 until his death.
Princess Dorothea of Saxe-Coburg and Gotha
Princess Dorothea Maria Henriette Auguste Louise of Saxe-Coburg and Gotha (30 April 1881 – 21 January 1967) was a princess of Saxe-Coburg and Gotha  by birth and the duchess of Schleswig-Holstein  through her marriage to Ernst Gunther, duke of Schleswig-Holstein.
Dorothea was born in Vienna, Austria, the second child and only daughter of Prince Philipp of Saxe-Coburg and Gotha and Princess Louise of Belgium.
Princess Teresa Cristina of Saxe-Coburg and Gotha
Princess Teresa Cristina of Saxe- Coburg and Gotha( 23 August 1902 – 24 January 1990), was a German princess of the House of Saxe- Coburg and Gotha.
Hubertus, Hereditary Prince of Saxe-Coburg and Gotha
Hubertus Michael, Hereditary Prince of Saxe- Coburg and Gotha, Duke of Saxony( born 16 September 1975) is the heir- apparent of the head of the family which ruled the Duchy of Saxe- Coburg and Gotha until 1918.
Prince August Leopold of Saxe-Coburg and Gotha
Prince August Leopold of Saxe- Coburg and Gotha( December 6, 1867 – October 11, 1922), known in Brazil as Dom Augusto Leopoldo, was a prince of the Empire of Brazil and of the House of Saxe- Coburg and Gotha- Koháry.
He was the second of four sons born to German Prince Ludwig August of Saxe- Coburg and Gotha and Princess Leopoldina of Brazil.
The second grandson of the Emperor Pedro II, the prince was, for some years between the presumptive heirs to the Imperial Crown of Brazil.
Their descendants would form the Saxe- Coburg and Gotha branch of the Imperial House of Brazil.
Alfred, Duke of Saxe-Coburg and Gotha
Alfred( Alfred Ernest Albert; 6 August 184430 July 1900) reigned as Duke of Saxe- Coburg and Gotha from 1893 to 1900.
He was the second son and fourth child of Queen Victoria of the United Kingdom and Prince Albert of Saxe- Coburg and Gotha.
He was known as the Duke of Edinburgh from 1866 until he succeeded his paternal uncle Ernest II as the reigning Duke of Saxe- Coburg and Gotha in the German Empire.
Prince Leopold of Saxe-Coburg and Gotha
Prince Leopold Franz Julius of Saxe-Coburg and Gotha
(Vienna, 31 January 1824 – Vienna, 20 May 1884) was a German prince of the House of Saxe-Coburg and Gotha-Koháry.
Born "Prince Leopold Franz Julius of Saxe-Coburg-Saalfeld, Duke in Saxony", he was the third son of Prince Ferdinand of Saxe-Coburg and Gotha and Princess Maria Antonia Koháry.
Leopold was a younger son and was unlikely to inherit titles or land, so he entered the Army in the service of the Austrian Empire.
At one point Leopold was considered as a potential husband for Isabel II of Spain.
This did not, however, prove to be realistic, given the resistance of France and other European powers.
Spain had been the scene of Great Power rivalry throughout the period since 1815 and all the Great Powers were seeking to exert their influence by supporting different candidates.
The Saxe-Coburg family was perceived to be too closely linked with British interests.
The Coburg influence extended widely.
In Great Britain, Queen Victoria and her husband Prince Albert were Leopold's first cousins, while Leopold I of Belgium was Leopold's paternal and Queen Victoria's maternal uncle, and Leopold's brother was King Ferdinand II of Portugal, husband of Queen Maria II of Portugal.
Leopold's candidature in the affair of the Spanish Marriages was used by France as the excuse to negotiate the hasty marriage between Queen Isabella II of Spain and her cousin Francis of Spain, at the same time as that between the son of Louis Philippe and the Queen of Spain's younger sister.
Later, Leopold met Constanze Geiger, a common woman.
She bore him a son, called Franz in Vienna on 12 October 1860.
Leopold and Constanze married six months later, on 23 April 1861.
Immediately, he recognized his son, who was created "Freiherr von Ruttenstein" on 24 July 1862.
The same day, Constanze was created "Freifrau von Ruttenstein" in her own right.
Because the marriage of his parents was unequal (and thus morganatic), Franz was barred from the succession of Koháry and Saxe-Coburg-Gotha.
Regardless, he died childless and unmarried on 29 August 1899.
Leopold is buried in the ducal mausoleum at , Coburg.
Constanze Geiger
Constanze Therese Adelaide Geiger, Freifrau von Ruttenstein (16 October 1835, Vienna – 24 August 1890, Dieppe) was an Austrian pianist, actor, theatrical actress, composer and singer.
Kelly Rondestvedt
Kelly, Hereditary Princess of Saxe- Coburg and Gotha, Duchess of Saxony( born Kelly Jeanne Rondestvedt on 10 January 1975) is an American investment banker.
Through her marriage to Hubertus, Hereditary Prince of Saxe- Coburg and Gotha, the heir apparent to the defunct ducal throne of Saxe- Coburg and Gotha, she is a princess of the House of Saxe- Coburg and Gotha.
Andreas, Prince of Saxe-Coburg and Gotha
Andreas, Prince of Saxe- Coburg and Gotha, Duke of Saxony( given names:" Andreas Michael Friedrich Hans Armin Siegfried Hubertus"; born 21 March 1943) has been the head of the House of Saxe- Coburg and Gotha since 1998.
He is the grandson of Charles Edward, the last ruling duke of Saxe- Coburg and Gotha.

Question: Where did Prince Leopold Of Saxe-Coburg And Gotha's wife die?
Answer: Dieppe