This is the only residence which actually belonged to her late majesty, Queen Elizabeth the Queen Mother. She bought the castle, once known as
Barrogill Castle until Queen Elizabeth restored its former name, after the death of King George VI. Her majesty's close friends, the Vyners, owned a home nearby and it is in the extreme northern part of Scotland. Here is a link to the Castle and a photograph of the queen mother's desk in the castle.
The Castle of Mey | Visitor Information - Inside the Castle
The three framed photographs displayed (two of George VI and one of Queen Elizabeth, King George and the Princess Elizabeth) were reportedly three of her favourites.
I would love to hear from anyone who has visited the Castle of Mey or has additional information.