Tally, as she is known to friends and family, had an older brother, Nicholas (1947–1991), and three older sisters, including Marita Knight and the late Alexandra Hamilton, Duchess of Abercorn. Her maternal grandparents were Sir Harold Wernher, 3rd Bt, and Countess Anastasia de Torby, morganatic daughter of Grand Duke Michael Mikhailovich of Russia. Her paternal grandparents were Colonel Joseph Phillips and Mary Bryce, daughter of John Pablo Bryce. Early life īorn Natalia Ayesha Phillips, she is the youngest daughter of Lieutenant Colonel Harold 'Bunnie' Phillips and Georgina 'Gina' Wernher. As of 2021, the Duchess's family, specifically her son, were 12th on the Sunday Times Rich List with a net worth of £10.045 billion. She is the widow of the 6th Duke of Westminster and mother of the 7th Duke. Natalia Ayesha Grosvenor, Dowager Duchess of Westminster ( née Phillips born ), is a British aristocrat, philanthropist and winemaker.