Countess Isabella von Bentinck (born 1889) (1889–1981) Parents Baroness Maria Cornelia van Heeckeren van Wassenaer Wilhelm Aldenburg-Bentinck, 6th Graf Bentinck Children Countess Marie Helene zu Solms-Sonnenwalde Alfred Graf zu Solms-Sonnenwalde Siblings Mechtild von Bentinck Frederick George Unico Williams Bentinck William Frederick Charles Henry Bentinck, 7th Graf Bentinck Partners Wilhelm Graf zu Solms-Sonnenwalde