John Hemming, a former Liberal Democrat MP, wants journalists to be told who is featuring in private High Court battles

Millionaires in disputes with their estranged partners should be named on lists of cases heard behind closed doors at the highest divorce courts, a family justice campaigner has said.

John Hemming, a former Liberal Democrat MP, wants journalists to be told who is featuring in private High Court battles so that they can argue for publishing their names.

Litigants’ surnames are on lists of private hearings at lower-level divorce courts such as the Central Family Court in London but those in the Family Division of the High Court, involving the wealthy, contain only case numbers.

Mr Hemming, 57, said that the protection was unfair. He raised concerns about a case in which a foreign billionaire was ordered to make a £450 million payout to his