Ernest Frederick, Duke of Saxe-Coburg-Saalfeld

), was a duke of Saxe-Coburg-Saalfeld.

He was the eldest son of Francis Josias, Duke of Saxe-Coburg-Saalfeld and Anna Sophie of Schwarzburg-Rudolstadt.

Ernest Frederick succeeded his father in the duchy of Saxe-Coburg-Saalfeld when he died in 1764 and established his definitive residence shifted in Coburg. Because of the high indebtedness of the duchy was compeled for emperor Joseph II in 1773 to work in a "Debitkommision" -obligation administration of debts assigned- for over thirty years.

Ancestry

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1= 1. Ernest Frederick, Duke of Saxe-Coburg-Saalfeld
2= 2. Francis Josias, Duke of Saxe-Coburg-Saalfeld
3= 3. Anna Sophie of Schwarzburg-Rudolstadt
4= 4. John Ernest IV, Duke of Saxe-Coburg-Saalfeld
5= 5. Charlotte Johanne of Waldeck-Pyrmont
6= 6. Louis Frederick I, Prince of Schwarzburg-Rudolstadt
7= 7. Anna Sophie of Saxe-Gotha-Altenburg
8= 8. Ernest I, Duke of Saxe-Gotha
9= 9. Elisabeth Sophie of Saxe-Altenburg
10= 10. Josias II, Count of Waldeck and Pyrmont
11= 11. Wilhelmine Christine of Nassau-Siegen
12= 12. Albrecht Anton, Count of Schwarzburg-Rudolstadt
13= 13. Emilie Juliana von Barby-Mühlingen
14= 14. Frederick I, Duke of Saxe-Gotha-Altenburg
15= 15. Magdalena Sibylle of Saxe-Weissenfels
16= 16. John II, Duke of Saxe-Weimar
17= 17. Dorothea Maria of Anhalt
18= 18. Johann Philipp, Duke of Saxe-Altenburg
19= 19. Elisabeth of Brünswick-Wolfenbüttel
20= 20. Philipp VII, Count of Waldeck-Wildungen
21= 21. Anna of Sayn-Wittgenstein
22= 22. Wilhelm, Count of Nassau-Siegen
23= 23. Christina, Countess of Erbach
24= 24. Louis Guenther I, Count of Schwarzburg
25= 25. Emilie von Oldenburg-Delmenhorst
26= 26. Albert Frederick of Barby-Mühlingen
27= 27. Sophie Ursula of Oldenburg-Delmenhorst
28= 28. Ernest I, Duke of Saxe-Gotha (= 8)
29= 29. Elisabeth Sophie of Saxe-Altenburg (= 9)
30= 30. August, Duke of Saxe-Weissenfels
31= 31. Anna Maria of Mecklenburg-Schwerin

Issue

In Wolfenbüttel on 23 April 1749 Ernest Frederick married with Sophia Antonia of Brunswick-Wolfenbüttel. They had seven children:
# Franz Frederick Anton, Duke of Saxe-Coburg-Saalfeld (b. Coburg 15 July 1750- d. Coburg, 9 December 1806), father of Leopold I of Belgium and grandfather of Leopold II, Empress Carlota of Mexico, Queen Victoria of Great Britain, and her husband Prince Albert.
# Karl Wilhelm Ferdinand (b. Coburg, 21 November 1751- d. Coburg, 16 February 1757).
# Fredericka Juliane (b. Coburg, 14 September 1752 - d. Coburg, 24 September 1752).
# Caroline Ulrike Amalie (b. Coburg, 19 October 1753 - d. Coburg, 1 October 1829), a nun at Gandersheim.
# Ludwig Karl Frederick (b. Coburg, 2 January 1755 - d. Coburg, 4 May 1806); he had an illegitimate son by some Mademoiselle Brutel de la Riviére: "Ludwig Frederick Emil of Coburg (b. Hildburghausen, 1779 - d. Coburg, 1827)". In turn, the five children of Ludwig Frederick were created "Freiherren von Coburg". His descendants still alive.
# Ferdinand August Heinrich (b. Coburg, 12 April 1756 - d. Coburg, 8 July 1758).
# Frederick (b. Coburg, 4 March 1758 - d. Coburg, 26 June 1758).