"Smiths Gore also manages the Queen's 46,000 acre Duchy of Lancaster estate which is worth around £400 million."
There's 400 mil right there.
"The value of the Prince of Wales's Duchy of Cornwall estate, which stretches over 135,000 acres across 23 counties mainly in the south-west of England, was last year estimated at £647 million."
but
"The Queen, who also has a private personal fortune much of which is thought to be tied up in the Stock Market, is entitled only to the estate's revenue not its capital."
http://www.telegraph.co.uk/news/uknews/theroyalfamily/4317209/Value-of-land-owned-by-Queen-and-Prince-Charles-rises-10-per-cent.html
"Smiths Gore also manages the Queen's 46,000 acre Duchy of Lancaster estate which is worth around £400 million."
There's 400 mil right there.
"The value of the Prince of Wales's Duchy of Cornwall estate, which stretches over 135,000 acres across 23 counties mainly in the south-west of England, was last year estimated at £647 million."
but
"The Queen, who also has a private personal fortune much of which is thought to be tied up in the Stock Market, is entitled only to the estate's revenue not its capital."