Emma Thynn, 40, showcases her toned figure in a floral bikini as she hits the beach at Le Club 55 in St Tropez

The Marchioness of Bath, Emma Thynn, showcased her toned physique in a black floral bikini as she hit the beach in St Tropez on Friday. 

Emma, 40, soaked up the sun at Le Club 55, in the daring string two-piece which she teamed with a matching sarong and Givenchy beach bag. 

During her day out, Emma looked relaxed as she headed for a swim and enjoyed a coconut water drink on a sun lounger. 

Le Club 55 is an iconic, legendary beach club and restaurant. 

Founded in 1955 by Bernard and Geneviève de Colmont, it initially served as a makeshift canteen for Brigitte Bardot and the crew of the cult film Et Dieu... créa la femme and today it remains a hotspot for the stars. 

Emma's aristocrat husband, Ceawlin Thynn, recently won a High Court bid to allow their nine-year-old surrogate-born son Henry to inherit part of his £157million fortune. 

Ceawlin, the 8th Marquess of Bath and owner of the Longleat estate, had his second son with wife Emma, Marchioness of Bath, in 2016 via a surrogate after she suffered from a rare inflammatory condition during her first pregnancy.

Henry Thynn was born to a surrogate mother in America, raising concern about his eligibility to benefit from three family trusts because of the historical definition of a legitimate child.

The nine-year-old is genetically the son of the 51-year-old Marquess - also known as Lord Bath - and his wife, Lady Bath.

But the family trusts use a pre-1970 common law definition of 'children' that predates modern fertility treatments.

At the High Court, Lord Bath had asked for a 'blessing' to allow Henry to potentially inherit a share of the fortune. 

Mr Justice Matthews said in a ruling that it would be 'unfair on Lord Bath and on Henry' to treat the boy as though he were not his father's son.

'Henry is the son of Lord and Lady Bath. Not only is he treated by them and will be treated by the world in general as a child of Lord and Lady Bath's marriage but he is also their genetic child,' he added.

Though his older brother John, 11, would inherit before him because of primogeniture - which provides for a firstborn legitimate child to inherit their parents' estate - it was argued Henry could still stand to benefit.

The judge said at this stage the trustees only wanted the power to add Henry as a beneficiary but not to exercise it yet.

Mr Justice Matthews said this delay was to 'avoid any problems with US tax' because Henry was born there to an American surrogate mother.

'A decision can then be taken at a later stage, in the light of appropriate advice, whether to exercise the power to add him,' the judge added.

Henry is believed to be the first member of the British aristocracy to have been born by surrogacy, after his mother suffered hypophysitis during her first pregnancy in 2014.

That pregnancy came a year after she married her husband, who inherited his title seven years later following the death of his father from Covid aged 87.