[citation needed] Her father belonged to Upper Silesian, cadet branch of the House of Harrach, which became the main line in 1886, only upon the death of Count Anton Leonhard XI von Harrach zu Rohrau und Thannhausen (1815-1886), head of the most senior, Austrian line of the family.

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 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.

During her widowhood, she established her household in Villa Liegnitz, near Neues Palais, which was, after her death, given to her husband's great-granddaughter, Princess Charlotte of Prussia.

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 von Zedlitz noble family.