Queen Elizabeth II died peacefully of "old age" on September 8, 2022, at Balmoral Castle. Her official death certificate lists the cause as old age, indicating a natural decline in bodily functions associated with aging rather than a specific illness. Reports also reveal she was diagnosed with bone cancer in the years before her death, though this was not listed as the official cause. Additionally, accounts mention her final moments were peaceful and without pain, as she slipped away in her sleep.