A sanctioned Russian businessman has won a Supreme Court appeal over a money fight with his ex-wife, but legal issues remain in his bid to avoid what could become the highest-value divorce case in English history.
Vladimir Potanin, estimated to be worth around 20 billion US dollars (£15.7 billion), wanted to overturn a Court of Appeal decision allowing Natalia Potanina to bring a multibillion-pound claim against him in London.
