Mighty have fallen: British Billionaires lose big

An influx of European and American bargain hunters, taking advantage of a weakened pound, helped boost the income of some retailers including Mohamed al-Fayed, owner of the luxury London store Harrods.

His estimated fortune rose by 17 percent to 650 million pounds.

At the other end of the shopping experience, Ken Morrison, president of the supermarket Morrisons, saw his fortune rise 11 percent to 1.6 billion pounds.

Online betting also benefited, with Peter and Denise Coates, owners of the online sports betting Web site Bet365, seeing their wealth rise by 33 percent to 400 million pounds.

Collectively, the 1,000 multi-millionaires in the list saw their wealth fall by 37 percent. They are worth 258 billion pounds, down from last year's record total of 413 billion pounds.

The annual list is based on identifiable wealth, including land, property and other items such as art, racehorses or significant shares in publicly quoted companies, but does not include bank accounts.