Lucy Worsley, chief curator at Historic Royal Palaces, explores how the physical and mental health of our past monarchs has shaped the history of the nation. From Henry VIII to Edward VIII's abdication in 1936, this three-part series re-introduces our past royals not just as powerful potentates, but as human beings, each with their own very personal problems of biology and psychology. 　　Stripping away the regal facade, Lucy examines their medical problems, doctors' reports, personal correspondence and intimate possessions to gain a unique insight into the real men and women behind the royal portraits. She uncovers how kings and queens have had to deal with infertility, religious extremism, depression, bisexuality and culture shock. But could these supposed chinks in the royal armour provide a surprising explanation for the enduring power of the British monarchy? Lucy argues that the survival of the monarchy has been determined not so much by the strengths of our past monarchs but by their weaknesses.