One of the perks of being Queen is having houses dotted across the country meaning you're never short of a place to stay.
It also means you have plenty of properties for your family to live in - even if you've never lived there yourself.
And one of these forgotten properties that the Queen has never called home lies on the Windsor estate - and it's apparently been looked at by the Duke and Duchess of Cambridge.
Frogmore House has been a royal residence since 1792 when it was bought by George III's wife Charlotte, but it is currently unoccupied.
Her Majesty has never chosen to live there because when in Windsor she stays at her own castle.
The residence gets its name from the abundance of frogs that inhabit the marshland around its extensive grounds - which is also home to the Royal Mausoleum where Queen Victoria and Prince Albert are buried.
The property is now used as a public attraction and the doors will open again in August 2022 for visitors to admire the decadent interiors and incredible gardens.
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Inside the house, there is the Staircase Hall, which features wall murals by the French artist Louis Laguerre.
There's also the Cross Gallery that's filled with artwork as well as the Black Museum, decorated in the style of Queen Mary.
While the Britannia Room features a number of items from the Royal Yacht that were selected by Prince Philip to be put on display.
The residence has played host to important royal occasions over the years such as the wedding reception of Peter Phillips and Autumn Kelly and then Prince Harry and Meghan Markle.
However, it is not to be confused with Frogmore Cottage which is located on the same estate and was granted by the Queen to be the official residence of Harry and Meghan before they moved to the US.
There has been much speculation that William and Kate are considering a move to Windsor to be closer to the Queen and royal decision making.
They have reportedly been looking in west London for senior schools for Prince George and Princess Charlotte.
And according to the Daily Mail's Richard Kay, Frogmore House is one of the properties that William has looked at.
He wrote: "The Grade I-listed mansion close to the Windsor burial grounds where Prince Harry and Meghan held their wedding reception.
"It fell out of favour as a royal residence in the 1920s but it would certainly fulfil William’s requirement of a secure and private spot within the royal estate."
A move to Windsor would also see them nearer Kate's family, who is based not far away in Bucklebury.
