The 6th Duke of Westminster's £9 billion estate passed in trust to his 25-year-old son over three daughters

The Grosvenors got their London land when Sir Thomas Grosvenor married Mary Davies, a scrivener's daughter, in 1677. It became Mayfair and Belgravia. Hugh Grosvenor, the 2nd Duke, called Bendor, married four times and lost his only son at age four in 1909. He died on 19 July 1953. His estate paid a then-record £18 million in death duties, which took until August 1964 to clear. His November 1952 will put the capital in trust for future dukes instead of his heirs directly. Gerald, the 6th Duke, had a heart attack at his Abbeystead estate and died aged 64. The Sunday Times Rich List had put his worth at £9.35 billion. Control passed to his only son, Hugh, aged 25. His daughters Tamara, born 1979, and Edwina, born 1981, are older than Hugh. The dukedom passes only to men. Because the wealth sat in trusts, the family stood to pay little or no inheritance tax, which led to calls for reform. Gerald once said he would rather not have been born wealthy. In 2026 Hugh, 7th Duke, chairs Grosvenor Group and the trustees. The 2025 Rich List put him 14th, at £9.884 billion. He married Olivia Henson at Chester Cathedral on 7 June 2024. Their first child, Lady Cosima, was born on 27 July 2025.