Net worth: £1.58 billion ($2.27 billion)
Age: 82, 47
Robert Miller made his fortune through cofounding the Hong Kong-based Duty Free Shoppers chain in 1960.
He retains a 38.75% stake in the group despite selling it to LVMH in 1998.
Nowadays, most of his wealth is "tied up in Search Investments, which has managed his money since 1974. Miller sold his private equity operation, Squadron Capital, in 2012. It had $1.5 billion in assets under management," said the Sunday Times.
His daughter Marie-Chantal Miller was born in London, England, and is the Crown Princess of Greece, Princess of Denmark after marrying Pavlos, the son of former King Constantine II of Greece, who was deposed in 1973.