Ella van Heemstra was a Dutch aristocrat and the third daughter of five of Baron Aarnoud van Heemstra, who was mayor of Arnhem from 1910 to 1920 and served as Governor of Suriname from 1921 to 1928. Ella's mother was Elbrig Willemine Henriette, Baroness van Asbeck (1873–1939), who was a granddaughter of jurist Dirk van Hogendorp. She spent much of her childhood at Huis Doorn. At age nineteen, Ella married Jonkheer (Esquire) Hendrik Gustaaf Adolf Quarles van Ufford (1894-1955), but they divorced in 1925. Ella had two sons from this marriage, who were both born in the Dutch East Indies:
Jonkheer Arnoud Robert Alexander Quarles van Ufford (1920–1979), and Jonkheer Ian Edgar Bruce Quarles van Ufford (1924–2010).
Ella married, secondly, Joseph Victor Anthony Ruston (1889-1980) (later Hepburn-Ruston) on 24 September 1926 at Batavia, Java, Indonesia. Their daughter Audrey Kathleen Ruston, commonly known as Audrey Hepburn, was born on 4 May 1929 in Brussels. She and Joseph Victor Anthony Hepburn-Ruston were divorced on 24 June 1939.
In the early 1960s she lived in Los Angeles with her friend Leonard Gershe and then later in San Francisco where she did volunteer work for soldiers coming back from Vietnam. When she visited Los Angeles she was entertained by friends like George Cukor, Mrs. Mildred Knopf (wife of Edwin H. Knopf) and Veronique Peck. She spent the rest of her life in her daughter's house in Tolochenaz where she died in 1984.
(Bio Info courtesy of Wikipedia.)
Note: Her body was returned to her homeplace of Huis Doorn for burial.