Rosalie (Rosa) Nachmanson née Davidson (20 March 1852 – 9 November 1916) was a Swedish philanthropist and charity worker.
[1] She was the daughter of conditor Wilhelm Davidson who opened the known restaurant Hasselbacken in Stockholm in the mid-1800s.
Nachmanson was an active philanthropist throughout her life, and made her home a center for artists.
Half of the money was to be handed over to people close to her and the rest was to be given to several charity health care causes.
[3] Nachmanson was one of the biggest donors to the construction of the Stockholm Concert Hall through her will.