Heald was allowed unprecedented access for his book and found himself struggling to fit all The Duke’s accomplishments and activities into his book’s pages. It was a routine that had barely reduced by the time Prince Philip retired from public duties in August 2017. Anyone who still believes that the members of the Royal Family live in pampered idleness would do well to study The Duke’s diary and the sheer number of events packed into a single day, every day, for decade after decade. The Duke of Edinburgh attends the Presentation Reception for The Duke of Edinburgh Gold Award holders in the gardens at the Palace of Holyrood House in 2017. Photo by Jane Barlow – WPA Pool/Getty Images