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Best-selling English novelist, Barbara Taylor Bradford has a net worth of $300 million. Her books have sold 83 million copies in 90 countries. Ten of her books have been adapted for television. Now living in Manhattan,  Barbara Taylor Bradford started in the typing pool at her local newspaper in Leeds before moving to Fleet Street and then New York, where her first novel, A Woman of Substance, was published in 1979. In 2007, Queen Elizabeth II awarded the OBE for her contributions to literature.

Joe Bamford, the founder of the Staffordshire-based JCB industrial empire, moved to Switzerland in 1975 to live with Ellis, his former secretary. He died in 2001 and left an estate worth £200m, including homes in Switzerland and Majorca.

De Botton’s second husband, Gilbert, a London-based Swiss financier, sold his Global Asset Management operation for £234m a year before his death. His widow was listed by American magazine ARTnews as among the world’s top 200 art collectors. She has donated works to the Tate.

Israeli-American rock and roll legend and bassist for the band KISS, Gene Simmons has an estimated net worth of $300 million.

Croatian-English heiress, model, fashion designer and socialite, Petra Ecclestone, has an estimated net worth of $300 million. She is the younger daughter of Croatian former Armani model Slavica Ecclestone and Formula One billionaire Bernie Ecclestone. She has an older sister named Tamara.

British socialite, television personality and model, Tamara Ecclestone has an estimated net worth of $300 million.

American politician,author and businessman,Albert Arnold “Al” Gore, Jr. has an estimated net worth of $300 million.

Adi Tatarko is an American businesswoman and entrepreneur who has an estimated net worth of $300 million.

American real estate broker and businessman, Richard Howard “Rick” Hilton, has an estimated net worth of $300 million. He is the Chairman and co-founder of Hilton & Hyland, a real estate brokerages firm. He is a son of billionaire Barron Hilton and grandson of Conrad Hilton, founder of Hilton Hotels. He is also the father of socialites Paris Hilton and Nicky Hilton with his wife married actress Kathy Richards.

The son of Peter Morton, the founder of Hard Rock Café, and the grandson of the famed restaurateur, Arnie Morton is the founder of Morton’s Restaurant Group.