|Duke of Saxe-Altenburg|
prev. Duke of Saxe-Hildburghausen
|Duke of Saxe-Altenburg|
|Predecessor||New Creation (Saxe-Gotha-Altenburg)|
|Duke of Saxe-Hildburghausen|
|Predecessor||Ernest Frederick III|
|Successor||Dissolved (swap with Saxe-Meiningen)|
|Born||29 April 1763|
|Died||29 September 1834 (aged 71)|
Jagdhaus Hummelshain, Altenburg
|Spouse||Duchess Charlotte Georgine of Mecklenburg-Strelitz|
|Issue||Prince Joseph Georg |
Catherine Charlotte, Princess Paul of Württemberg
Therese, Queen of Bavaria
Louise, Duchess of Nassau
Prince Franz Frederick
Prince Frederick Wilhelm
|Father||Ernest Frederick III, Duke of Saxe-Hildburghausen|
|Mother||Princess Ernestine of Saxe-Weimar|
Frederick, Duke of Saxe-Hildburghausen (29 April 1763 in Hildburghausen - 29 September 1834 in Jagdhaus Hummelshain, Altenburg), was duke of Saxe-Hildburghausen (1780-1826) and duke of Saxe-Altenburg (1826-1834).
Frederick succeeded his father Duke of Saxe-Hildburghausen in 1780, when only seventeen years old; because of this, his great grand uncle, the prince Joseph of Saxe-Hildburghausen, assumed the regency on his behalf, this regency only ended in 1787 at the death of Prince Joseph.
Until 1806 he was subject to the restrictions of the imperial debit commission, which had placed the duchy of Saxe-Hildburghausen under official administration, because of his predecessors' dissolute financial policy. In 1806 Frederick joined the Confederation of the Rhine, and in 1815 the German Confederation, under whose guarantee he gave 1818 the duchy a new basic condition.
In Hildburghausen on 3 September 1785, Frederick married Duchess Charlotte Georgine of Mecklenburg-Strelitz. She was a niece of Charlotte of Mecklenburg-Strelitz, who was the wife of King George III. Two of her sisters later became the queens of Prussia and Hanover, respectively. They had twelve children:
Frederick was considered popular and intelligent. During his reign, along with his beautiful wife, Charlotte, cultural life in the small town reached its zenith. So many poets and artists spent their time there that Hildburghausen was nicknamed "Klein-Weimar" (Little Weimar). When the last duke of Saxe-Gotha-Altenburg died without issue in 1825, the other branches of the house decided on a rearrangement of the Ernestine duchies. On 12 November 1826, Frederick became Duke of Saxe-Altenburg, to which he gave a first Basic Law in the year 1831; in exchange, he ceded Saxe-Hildburghausen to the Duke of Saxe-Meiningen.
|Ancestors of Frederick, Duke of Saxe-Altenburg|
Frederick, Duke of Saxe-AltenburgBorn: 29 April 1763 Died: 29 September 1834
Ernst Frederick III
| Duke of Saxe-Hildburghausen
|became Duke of Saxe-Altenburg|
as Duke of Saxe-Gotha-Altenburg
| Duke of Saxe-Altenburg