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A Russian-born beauty queen and actress who received a divorce payout of more than £3.3 million is demanding extra cash from her ex-husband to maintain a “reasonable standard of living”, a court heard.

Ekaterina Fields, 43, had a lavish lifestyle during her decade-long marriage to American lawyer Richard Fields, 60.

She dined at top restaurants, had a Maserati on the drive and a cook and two nannies at home.

When the couple split in 2011, Mrs Fields, a former child actress, asked for £60,000 a year for clothes for herself and her children, beauty treatments and hairdressing and a £75,000 annual holiday fund.

Last year, Mr Justice Holman gave her assets totalling more than £3.3 million — enough to buy a flat in Kensington and Chelsea with their two children —and £370,000 a year in maintenance.

This included £100,000 a year to help her build up a savings pot.

But Mrs Fields, who was Miss World University 1990, now claims she is not being paid enough to leave her sufficiently provided for in the future, saying her ex-husband can afford to double this part of his payment to her.

“The wife says the provision for the future fund was too small and would leave her unprovided for in later life,” Lady Justice Black told the Court of Appeal.

During the divorce battle, Mr Justice Holman heard that the couple, who met in 2001, had an “eye-watering” standard of living at an apartment overlooking Central Park in New York.

“We enjoyed frequent foreign holidays, always flying business class, and ate in the finest restaurants,” Mrs Fields said. “He encouraged me to spend freely and would buy me lavish gifts of jewellery several times each year.”

Mr Fields admitted being generous to his fifth wife, and said he spent close to his limits during their marriage. Mrs Fields moved to London and argued when the couple divorced that she had to stay living in the Kensington and Chelsea area to mirror her New York lifestyle and in order to be located close to the school and nursery attended by her children.

The divorce deal included £100,000 a year in payments to build up her independent savings, so she would have more than £1 million in the bank after a decade.

But Mrs Fields now claims her ex-husband’s declining health and his age mean his time as a top earner is limited, so he should increase the payments to £215,000 a year to ensure she gets a proper nest egg.

Lawyers for Mr Fields argue the original settlement was fair, and say he was preparing to apply to reduce the payments because of a downturn in his income. Lady Justice Black adjourned the case to a later date to hear evidence about Mr Fields’s health problems.

Last year’s original court battle was heard in public after the judge learned the warring couple had run up legal bills topping £1 million.

Mrs Fields said she had tried to work in the past, including as a personal assistant and in diamond trading, but she had no plans to seek employment in the future. “I am a very good wife. I will try to find a husband,” she said. “I intend to make attempts at making money ... It is unclear at this point how I would succeed.” She later claimed the comments were intended as a joke.

The court previously heard that Mrs Fields suffers from chronic fatigue syndrome which stops her from "carrying on normal activities".