Anna Fridrica Wilhelmina von Hallwyl (née Kempe; 1 October 1844 − 25 July 1930) was a Swedish collector and donor whose accumulation of art and other objects constitute the current Hallwyl Museum in Stockholm. Biography. Wilhelmina was born in Stockholm, the only child and heiress of the wealthy timber-merchant Wilhelm Kempe of Ljusne-Woxna AB. At the age of 20, she married the Swiss-born Count Walther von Hallwyl (1839–1921), a captain in the Swiss general staff who later became a Swedish citizen.
https://en.wikipedia.org/wiki/Wilhelmina_von_Hallwyl