Party leaders promise to leave a tenth of their cash to charity A number of rich businessmen have already pledged money to the campaign, including Sir Richard Branson, the founder of Virgin, Sir Roger Carr, Chairman of British Gas owner Centrica, Sir Nigel Rudd, Chairman of airport operator BAA and Charles Dunstone, co-founder of The Carphone Warehouse. The extent of Mr Cameron's wealth remains a mystery, but he is thought to be a millionaire. Nick Clegg, the Deputy Prime Minister, is the son of a millionaire banker. Roland Rudd, the founder of Legacy10, said he hoped the pledges by politicians would encourage others to donate. "The appeal of Legacy10 is its simplicity," he said. We are asking people to make a contribution to their favourite cultural or charitable cause in their will, the benefit to that cause will be four times bigger than the small loss to the donor. I am so pleased that all of our main political leaders have not only chosen to support Legacy10 but have also made a personal commitment to change their wills to make the pledge. Fewer than one in ten people currently make a donation to charity in their wills. Legacy10 is trying to raise awareness about the tax changes, claiming that four in five people are unaware of new measures to encourage charitable giving.