The estate of dead billionaire Badri Patarkatsishvili will be split in half between his wife and other family members, it has been reported.

According to a family spokesman, 50 per cent of his fortune will go to his wife and the remainder to his children and mum.

Mr Patarkatsishvili collapsed and died in front of his wife at their £10million Leatherhead mansion at 11pm on February 12.

A postmortem examination on the tycoon - who had feared he had been targeted for assassination by the Georgian Government - showed he died of heart failure.

The scene was reportedly tested for radioactivity but investigators found no evidence of radioactive materials being involved in Mr Patarkasishvili's death.

Mr Patarkatsishvili had led and paid for an opposition campaign against Georgian President Mikhail Saakashvili.

In January, Mr Patarkatsishvili ran against Saakashvili in a snap election - which opposition groups allege was rigged - and gained around seven per cent of the vote.

In December, Mr Patarkatsishvili had told Associated Press he had a recording of a Georgian interior ministry official asking a Chechen warlord to murder him.

The family have been given permission to fly Mr Patarkasishvili's body out of the UK.