There were a number of homes across the country where the late Queen could relax and enjoy time with her family as a mother, grandmother and great-grandmother.
Wood Farm on the Sandringham Estate and Balmoral Castle in Scotland, where the monarch spent her final days, where among her favourite. But Windsor Castle also had a special place in her heart, as it's where she lived for large chunks of her life - both in the castle itself and in Royal Lodge.
But a young Princess Elizabeth and her husband The Duke of Edinburgh started their family life in another property just six miles from the main castle, but you probably haven't heard of it.
While they only lived there for a few years, the house offered a comfortable base for the young couple to raise their first child, King Charles. It also provided the perfect location for the princess to be close to her parents when they were in Berkshire.
After they married in 1947, the couple rented Windlesham Moor, which is just a stone's throw from The Earl and Countess of Wessex's current home of Bagshot Park.
The Victorian manor was bought by Philip Hill in 1942 for £40,000. He renovated the property but sadly died a few short years later. His widow decided to rent the furnished property to Princess Elizabeth.
The house featured a 50ft drawing room, a study, a games room, and five main bedrooms. The main feature of the property was the nursery as it was reportedly comprised of two guest bedrooms joined together.
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Some of the most famous pictures of Princess Elizabeth and Prince Philip playing with the now King Charles were filmed at Windlesham Moor. The famous images saw eight-month-old Prince sitting in an open pram, playing with his mother's pearl necklace and laughing at the camera.
The couple only lived in the house until 1949 when they moved to Clarence House in London, which later became the home of The Queen Mother until her death in 2002. It's now King Charles and Queen Camilla's home.
As for Windlesham, it has since been acquired by Sheikh Hamdan bin Rashid Al Maktoum, who has made significant improvements to the home. He has not only added a number of extensions, but two cottages and a security gatehouse in 2002.
Al Maktoum, his family and other Arab dignitaries traditionally live there from July to September but other guests of the Sheikh's stay there at other stages in the year. The property is maintained by property managers, gardeners and security personnel.
While Windlesham Moor was certainly one of King Charles' first homes, he was left an impressive property portfolio when his grandmother, The Queen Mother, passed away at the age of 101 in 2002.
Among these homes was the Castle of Mey in Northern Scotland which was reportedly bought for less than £100.
The Castle of Mey is situated in Caithness on the northern coast of Scotland. It is a four-and-a-half-hour journey from another of the Royal Family’s Scottish residences, Balmoral Castle in Aberdeenshire.
It was built between 1566 and 1572 on the lands of Mey which belonged to the Bishops of Caithness.
But then it was purchased by the recently widowed Queen Elizabeth, The Queen Mother in 1952, following the death of her husband King George VI on February 6 of the same year.
It's not known exactly how much the former Queen paid for the home, with some saying she was given it for free or that she paid £1, while others suggest it was closer to £100, which is £2,951.53 in today's money.
The Queen Mother brought the castle up to date by adding electricity and freshwater supplies.
The library was used as her private sitting room in later life and she was known to watch her favourite British comedies Fawlty Towers and Dad’s Army there.
The Queen Mother usually visited the castle in August and October from 1955 until her final visit October 2001, before her death in March 2002.
The building is now owned by the Queen Elizabeth Castle of Mey Trust and it is open to the public between May and September every year.
