[1] Louise Meijerfeldt was the daughter of Governor general major Count Axel Wrede-Sparre and Augusta Törnflycht.

In 1763, she married Field marshal Count Johan August Meijerfeldt the Younger (1725–1800) in the presence of King Adolph Frederick of Sweden and queen Louisa Ulrika.

[3] The poet Johan Gabriel Oxenstierna, once the governor of her two sons, referred to her as: "a beauty, whom the old world would have worshipped on their knees as Diana and Venus".

She is regarded as quite much disposed for love adventures, although she has a great ability to conceal them; at present, however, she has not managed to do so, because her lover has the same sense of humor as she does, and their common weakness has exposed them.

"[5] Louise Meijerfeldt was known for her love life and among her lovers were the Spanish envoy count de Lacy, the French envoy Pierre Chrysostème Dusson de Bonnac (1774), field marshal Fredrik Vilhelm von Hessenstein (1774) and governor baron Carl Sparre (1777).