She died in her happy place. It was a photograph of herself and Prince Philip at Balmoral, wrapped in a tartan picnic blanket beside the hills of her beloved Loch Muick, that she chose to release on the eve of his funeral last year. Balmoral is where it is said he proposed to her and where,…

In 1953, in the rustling, ermined silence of the coronation of Queen Elizabeth II at Westminster Abbey, the 31-year-old Philip Mountbatten, Duke of Edinburgh, removed his own coronet, knelt at the feet of the young woman he wed six years before, and swore an oath of allegiance. “I, Philip, Duke of…