The estimated personal wealth of King Charles is almost £2billion thanks to eight key assets, according to a new report.
It is claimed the King has now inherited assets that have propelled his wealth to an estimated £1.815bn - following the death of his mother the late Queen.
The report claims that his most valuable asset is the Duchy of Lancaster, which is described as a "unique portfolio of land, property and assets held in trust for the Sovereign".
Meanwhile, other high-value assets owned by the monarch are said to include the royal jewellery collection, his property portfolio and even his racehorses.
The report was compiled by The Guardian, which says it worked with experts to value his assets to make informed estimates.
It claims the Duchy of Lancaster, the monarch's personal estate is worth an estimated £653million, while the royal jewellery collection is likely to be worth around £533m.
The publication also reports his private property portfolio is around £330million, while investments likely total £142million and a stamp collection worth £100million.
Other assets include artwork, thought to be worth £224million, race horses, which could be worth £27million and cars, claimed to be worth £6million.
A Buckingham Palace spokesman said they do not comment on private finances but claimed the figures are "a highly creative mix of speculation, assumption and inaccuracy”.
The Guardian's report comes just days after another report claimed the King's huge fortune makes him even richer than his mother, the late Queen.
According to The Sunday Times Rich List, the monarch's personal net is £600million - much higher than the late Queen, whose fortune was calculated at £370million last year.
Over the years, Charles saved some of the profits he received from the Duchy of Cornwall and also earned money through housing developments, a range of biscuits and beer, as well as frugal lifestyle choices linked to environmentalism.
One of his former aides said Charles carefully rebuilt his finances after his £17million divorce settlement from Princess Diana in the 1990s.
The King's former adviser said Charles was "tucking away some money" from the Duchy - and despite not giving an exact sum, it was described as "several tens of millions".
The monarch is also known to be meticulous about switching off lights and during an interview with Vogue, he once said he hates throwing anything away - especially clothing items - if he knows he can reuse them in the future.
It is not clear how much exactly Charles was given by his father Prince Philip as his will was not made public.
Queen Elizabeth's sealed will was placed in a safe in London together with over 30 wills of other senior royals who have died since 1910.