Frederick, Hereditary Prince of Anhalt-Dessau

Memorial to Hereditary Prince Frederick in Kühnauer Park.

In 1786 he joined to the Prussian army, where he later obtained the rank of Generalfeldmarschall. In 1805 he contracted to build Kühnauer Park.

Frederick died in Dessau, three years before his father, thus never inherited Anhalt-Dessau. His place as Leopold III's heir was taken by his older son Leopold Frederick, who succeeded his grandfather in 1817 with the name Leopold IV.

In Bad Homburg vor der Höhe on 12 June 1792 Frederick married Landgravine Amalie of Hesse-Homburg (b. Homburg, 29 June 1774 – d. Dessau, 3 February 1846), daughter of Frederick V, Landgrave of Hesse-Homburg. They had seven children:[2]

1. Amalie Auguste (b. Dessau, 18 August 1793 – d. Rudolstadt, 12 June 1854), married on 15 April 1816 to Frederick Günther, Prince of Schwarzburg-Rudolstadt.
2. Leopold IV Frederick, Duke of Anhalt-Dessau and since 1863 Duke of all Anhalt (b. Dessau, 1 October 1794 – d. Dessau, 22 May 1871).
3. George Bernhard (b. Dessau, 21 February 1796 – d. Dresden, 16 October 1865).
4. Paul Christian (b. Dessau, 22 March 1797 – d. Dessau, 4 May 1797).
5. Louise Fredericka (b. Dessau, 1 March 1798 - d. Homburg, 11 June 1858), a deaf-mute from birth; married on 12 February 1818 to her uncle Gustav, Landgrave of Hesse-Homburg (brother of her mother).
6. Frederick Augustus (b. Dessau, 23 September 1799 – d. Dessau, 4 December 1864).
7. William Waldemar (b. Dessau, 29 May 1807 – d. Vienna, 8 October 1864), married morganatically on 9 July 1840 to Emilie Klausnitzer (b. Dessau, 30 January 1812 – d. Vienna, 28 March 1888), created Freifrau von Stolzenberg in 1842.

The text of the German song "Des kleinen Friedrichs Geburtstag", K. 529, by Wolfgang Amadeus Mozart, was originally written in 1778 by the poet Johann Eberhard Friedrich Schall to commemorate the ninth birthday of the Hereditary Prince Frederick. It is unknown how Mozart came across this text or why he chose to set it in Prague in 1787. All that is known is that it was entered into his own catalog of musical compositions as a completed work on 6 November 1787.