The Duke of York has little in the way of visible means of support. He has not had a proper full-time paid job since he left the Royal Navy in 2001. But he still manages to keep a spacious home in Windsor and a £13 million chalet in Verbier, leading a lifestyle that would be the envy of some millionaires.
There is extensive foreign travel, not just for work but also to play golf, go skiing and generally enjoy himself in fleshpots like St Tropez.
And the question that has never been satisfactorily answered is: how does he afford it?
“There is a mystery as to what he lives on and where his money comes from,” David McClure, author of Royal Legacy, said.