Robert Fellowes, Baron Fellowes Robert Fellowes, Baron Fellowes Robert Fellowes, Baron Fellowes, (born 11 December 1941) was Private Secretary to Queen Elizabeth II from 1990 to 1999, and is also known as a brother-in-law of Diana, Princess of Wales and first cousin of Ronald Ferguson, the father of Sarah, Duchess of York. Fellowes is the son of Scots Guards Major Sir William Fellowes, the Queen's Land Agent at Sandringham, and of his wife Jane Charlotte Ferguson, daughter of Brigadier-General Algernon Francis Holford Ferguson (great-grandfather of Sarah, Duchess of York). The Fellowes of Shotesham are an old country family, related to the Lords De Ramsey
Sarah Churchill, Duchess of Marlborough offer financially, as his estates were deeply in debt. Sarah had a rival for Churchill in Catherine Sedley, a wealthy mistress of James II and the choice of Churchill's father, Sir Winston Churchill, who was anxious to restore the family's fortune. John may have hoped to take Sarah as a mistress in place of the Duchess of Cleveland, who had recently departed for France, but surviving letters from Sarah to John show her unwillingness to assume that role. In 1677, Sarah's brother Ralph died, and she and her sister, Frances, became co-heirs of the Jennings estates in Hertfordshire and Kent.