Queen Elizabeth II, England's longest-reigning monarch, died in Scotland's Balmoral castle, her beloved childhood retreat. It is where her husband Prince Philip spent some of his final months.

​​Former U.K. Prime Minister Boris Johnson said the late Queen Elizabeth II had a form of bone cancer in her final years. Johnson’s new memoir, Unleashed, will hit booksellers’ shelves in October. But an excerpt teased this week offered a rare behind-the-scenes glimpse into the queen’s cause of death.

King Charles III has reflected on his mother's final days in Scotland, saying it is a "uniquely special place" for the royal family. The late Queen’s love for Balmoral Castle in Royal Deeside, was well known, and where she spent many summers - as a small child and in later life with Prince Philip.

For Queen Elizabeth, Balmoral Castle wasn't just a royal residence; it was a private sanctuary where she could shed the weight of the crown and simply be herself. Speaking to the Scottish parliament on Saturday,

Charles spoke candidly about his late mother's love for Scotland in a speech to the Scottish Parliament on Sunday, Sept. 29

King Charles III recently shared tidbits of his late mother, Queen Elizabeth II's passing, revealing that she spent her very last moments on Earth in "the most beloved of places." According to People,