Auguste von Harrach
Princess von Liegnitz Countess von Hohenzollern
Auguste Fürstin von Liegnitz
Born	30 August 1800
Died	5 June 1873(1873-06-05) (aged 72)
Noble family	Harrach
Spouse(s)	Frederick William III of Prussia ​ ​ ( m. 1824; died 1840)​
Father	Count Ferdinand Joseph von Harrach zu Rohrau und Thannhausen
Mother	Johanna Christiane Rayski von Dubnitz

Countess Auguste von Harrach zu Rohrau und Thannhausen, Princess of Liegnitz (30 August 1800 – 5 June 1873), was the second wife of King Frederick William III of Prussia. At the time of their marriage, the House of Harrach was still not recognized as equal for dynastic purposes. Later, in 1841, a year after Frederick William's death, they were officially recognized as a mediatized family (a former ruling family within the Holy Roman Empire), with the style of Illustrious Highness, which allowed them to officially have equal status for marriage purposes to those reigning and royal families. ^[1] Thus, in 1824 when the marriage occurred, it was treated as morganatic, so she was not named Queen, but was given the title Princess von Liegnitz and Countess von Hohenzollern. Frederick reportedly stated that he did not wish to have another queen after Queen Louise.

Auguste was the daughter of Austrian Count Ferdinand Joseph von Harrach zu Rohrau und Thannhausen (1763–1841) and Saxon noblewoman Johanna Christiane von Rayski (1767–1830), whose father, Adolf Heinrich von Rayski (1726–1778), was the owner of Kleinstruppen Castle, near Dresden. Patrilineally, she descended from Aloys Thomas Raimund, Count von Harrach (1669–1742), Viceroy of Naples, and Count Friedrich August von Harrach (1696–1749), Governor of the Habsburg Netherlands. Through her mother, Auguste has descended from Saxon and Bohemian nobility, including her grandmother Christiane Sophie von Leyser (1735–1806) who was a matrilineal descendant of Lucas Cranach the Elder and Lucas Cranach the Younger. ^[2]

Auguste met King Frederick William III at a spa in Teplitz in Bohemia in 1822. They married at Charlottenburg Palace on 9 November 1824. As Auguste was a Catholic and considered a non-dynast at the time, the marriage was initially kept a secret. In many quarters the marriage was greeted with great surprise and some initially refused to believe it. The greatest opponents of this marriage were the Mecklenburg-Strelitz cousins, the family of the King's first wife, Queen Louise. Auguste converted to Protestantism in 1826.

As a morganatic spouse, Auguste was ignored in the protocol of the court life of Berlin, ranking after all the princes and princesses of the royal family. She was not politically active and had no children. She nursed Frederick while he was dying in 1840, and it was decided to allow her to attend his burial in the crypt of the mausoleum in Schlosspark Charlottenburg, Berlin. ^[3]

Auguste was given a large allowance and allowed to continue to live at the royal estate in Sanssouci Park, Potsdam. During her widowhood, she established her household in Villa Liegnitz, near Neues Palais, which was, after her death, given to her husbands great-granddaughter, Princess Charlotte of Prussia. In her later years, Auguste traveled a lot, often visiting Italy, Switzerland, Great Britain and France. She was godmother to her nephew, Count Ferdinand von Harrach (1832–1915), a painter from the younger, Upper Silesian branch of the Harrach family. As one of Auguste's designated heirs, her death gave him the opportunity to acquire Tiefhartmannsdorf castle ( Lower Silesia) in 1874, previously owned by the Zedlitz family. ^[4]

On 5 Jun 1873, Auguste died while on a spa stay in Bad Homburg, Hochtaunuskreis, Hesse, Germany. She is buried in the crypt of the family mausoleum in Charlottenburg Palace, near her husband, but there is no gravestone or a memorial plaque. ^[5]

• Wichard Graf Harrach: Auguste Fürstin von Liegnitz. Ihre Jahre an d. Seite König Friedrich Wilhelms III. von Preussen (1824–1840) Stapp, Berlin 1987, ISBN  3-87776-190-9.
• Gisela und Paul Habermann: Fürstin von Liegnitz. Ein Leben im Schatten der Königin Luise Nicolaische, Berlin 1988 ISBN  3875842294