Lady Juliet Tadgell

As the only child of the 8th Earl Fitzwilliam, Lady Juliet inherited his estates, which have since passed into a trust for her benefit, and include his vast art collection, including seven paintings by George Stubbs and six by Anthony van Dyck and properties in England, Ireland and the United States. She consistently makes the Sunday Times Rich List, rising in 2009 to 1550th in the ranking with £35 million, although she suffered a £10 million drop that year because of the recession. She ran a stud farm and continues to own some racehorses.

On 26 January 1998, two days after her 63rd birthday, her son Nicholas committed suicide.

After her second husband's death, in 1997, Lady Juliet married thirdly the architectural historian Christopher Tadgell and lives with him at her estate of Bourne Park, near Canterbury, Kent.

In 1974 she married Somerset de Chair, who was a former Conservative Member of Parliament for South West Norfolk and Paddington South. The couple had one child:

In 1960, Lady Juliet married Victor Hervey, 6th Marquess of Bristol, twenty years her senior, eighteen days after he inherited his title upon his father's death. He had been divorced the previous year and, in his twenties, had been adjudicated a bankrupt, declared the "No.1 Playboy of Mayfair", and gaoled for jewel robbery. The couple had two children:

In 1943, when she was eight, her father inherited the title of Earl Fitzwilliam, and she became Lady Juliet. By this time, her parents' marriage was strained, and there was talk of divorce. In 1948 Earl Fitzwilliam died in a plane crash in France with his lover, Kathleen Cavendish, Marchioness of Hartington, the widow of the heir to the Dukedom of Devonshire and a sister of the future U. S. President John F. Kennedy. As her father's only child, Lady Juliet, still aged only thirteen, inherited his whole unentailed estate and his huge art collection. The following year, she and her mother left Wentworth Woodhouse, and most of its contents were sold.

Lady Ann Juliet Dorothea Maud Tadgell (née Wentworth-Fitzwilliam; born 24 January 1935), previously Marchioness of Bristol, is a British heiress, race horse breeder, and landowner. She consistently appears on the Sunday Times Rich List with an estimated net worth of £45 million, based on family assets she inherited in 1948.