The monarch, 93, who attended all five days of the annual races in Berkshire last week, is an owner and breeder of many thoroughbred horses.
Her own horses have won races a number of times, the first being in 1953.
So how much has the Queen made from standing in the winners’ enclosure?
Phil Dampier, who has been covering the royals for over 20 years, tells Yahoo UK’s ‘The Royal Box:’ “She’s [The Queen] won about £7m apparently as an owner over the years.
“In the old days she used to go out riding on the course, before the meeting, on a horse.”
As a child, Elizabeth was given her first horse, a Shetland pony named Peggy, at age 4. By the age of 18 she was an accomplished rider, and has continued to ride for pleasure.
Royal finances expert David McClure previously told ‘The Royal Box’ that while Her Majesty is famously frugal, “her one extravagance is horses.”
Mr McClure, author of ‘Royal Legacy’, added: “This is quite an expensive hobby. At one stage she [The Queen] had about a string of about 20 thoroughbred horses, she had three studs, she had stables and it was estimated, that I think in around about 2000, it was costing about £600,000 a year just to run that.
“I’m sure the stud probably breaks even, but the normal sort of horse racing venture doesn’t, so it probably is a drain on the private purse.”
The Royal Family has had a long history with Ascot.
The Berkshire racecourse was founded by Queen Anne in 1711, and has since received the patronage of a further eleven monarchs.
The Ascot summer race meeting officially became a Royal week in 1911, during the reign of King George V.