Britain has 18 female billionaires and dozens of female multi-millionaires.
However, according to the Sunday Times' Rich List published in 2015, most of the wealthiest women in the UK owe their their spectacular fortunes to marriage or divorce.
Others have inherited their vast wealth.
But some of the women that derived most of their wealth from marriage are known for marrying into financial royalty, while some are a little more surprising — like Hollywood actress Salma Hayek, who is based in London.
Business Insider decided to take a quick look to see who made the top spots.
11. Lady Lynn Forester de Rothschild— £467 million ($673.6 million). Lady de Rothschild married into financial royalty when she said "I do" to Sir Evelyn Robert Adrian de Rothschild. The British billionaire financier is her third marriage and she is now CEO of E.L. Rothschild, a holding company.
10. Inna Gudavadze — £650 million ($938 million). Inna and her family were pretty wealthy but the bulk of her wealth comes from her Georgian billionaire husband "Badri" Patarkatsishvili, who died of a heart attack in 2008. He amassed his wealth through his gold mines, oil, TV, casinos, property, and even a detergent plant.
9. Nancy Shevell — £730 million ($1.05 billion). Shevell married legendary Beatles singer Paul McCartney in 2011 and her wealth has boomed since then. While she brought £150 million (£217 million) to the relationship, from her share of her father's US trucking operation, McCartney is the major source of her wealth.
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