Born into a noble family of imperial comital rank, she later married the British ambassador David Murray, 7th Viscount Stormont after the pair fell in love in Dresden.

She accompanied her husband to his diplomatic post at the Habsburg court in Vienna, where she held salons and used her family connections to secure their position in society.

Her first husband came from the rich Berregaard family, which in the 18th century was among Northwest Jutland's largest landowners, he left her his entire fortune and three Danish estates of Ørslev Kloster, Starupgård, and Strandet.

Horace Walpole also thought of her as Polish and expressed that he can't wait to meet her, and after said she resembled Semele in that "my Lady Stormont brought to bed in flames", a reference to her health.

Her charm and influence secured a connection for her husband with Wenzel Anton, Prince of Kaunitz-Rietberg, one of the most powerful State Chancellors and a close advisor to Empress Maria Theresa.

Flourishing in the prime of life, in talent, in beauty, remarkable for every praise, endowed with every virtue, she met a death happy to herself, [but] deeply bitter to her friends, parents and most wretched husband.