An American businesswoman and her financier husband have started one of the biggest fights over money seen in a British court following the breakdown of their marriage.
Jamie Cooper-Hohn and estranged English husband Chris Hohn - who have homes in England, the United States and the West Indies - cannot agree who should get what share of a fortune said to run into hundreds of millions of pounds.
A judge today began hearing evidence at a private hearing in the Family Division of the High Court in London.
Mrs Justice Roberts has heard that the couple have assets totalling more than £700 million.
Mr Hohn says Mrs Cooper-Hohn should get a quarter of their fortune.
She says the wealth was created as a result of their "partnership" and says should get a half.
The judge today said on any view Mrs Cooper-Hohn would depart with a "very, very substantial sum".
Mrs Justice Roberts has heard how the couple, both thought to be in their late 40s, had married in 1985 and separated in 2012.
She said reporters could attend the hearing - due to end next week - but she said there would be limitations on what could be reported.