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.