Had two sons from her 1st marriage: Arnoud Robert Alexander Quarles van Ufford (December 5, 1920-June 18, 1979), and Ian Edgar Bruce Quarles van Ufford (August 27, 1924-April 27, 2010).
Her father was mayor of Arnhem from 1910 to 1920 and served as Governor of Suriname from 1921 to 1928.
Her cousin, Baroness Dina Louisa Sweerts de Landas, was the mother of Rudolph MacLeod, whose first wife was Mata Hari.