Sir David Beckham is Britain’s first billionaire sportsman after he and wife Lady Victoria doubled their wealth in the last year, according to the Sunday Times Rich List. The celebrity couple now have a combined fortune of £1.185 billion, a significant increase to the £500 million estimated net worth they had on the 2025 list. The major uptick in wealth is attributed to Sir David’s investments in the US, as the signing of Lionel Messi to Inter Miami until 2028 has lifted the value of his stake in the club, and a vast property development adjoining Inter’s home has provided another windfall. Meanwhile revenues at Lady Beckham’s eponymous fashion line have topped £100 million. The revelation comes amid the couple’s feud with their oldest son Brooklyn. They were accused by Brooklyn of “trying endlessly to ruin my relationship since before my wedding, and it hasn’t stopped” in a lengthy social media post in January.…