After coming into immense wealth following her marriage to one of the richest men in Sweden, Lachmann became a prominent sponsor of musical events, building restorations, and new constructions.

Additionally, she dedicated a significant portion of money in her will to the establishment of the Clara Lachmann Foundation, which promotes Scandinavism through culture and the arts.

Her father was the engraver and bullet manufacturer Michael Meyer, while her mother Fromme Eichel was descended from a prominent Danish Jewish family.

A player of both the piano and violoncello, she performed in public concerts in Ystad and hosted a series of music festivals alongside the singer Salomon Smith [sv].

She revised her will the following year, setting aside a significant portion to establish an organization dedicated to promoting Scandinavism through culture and the arts, honoring her dual nationality.