The Duke of Wellington was the most famous Briton of the first half of the 19th century. His victory over Napoleon at Waterloo in 1815 altered the course of history. The hero of Waterloo became a towering figure in British history for both his achievements and for embodying our notions of Britishness - the stiff upper lip, unfussy straightforwardness and incorruptibility in office - he was the Iron Duke. This drama documentary looks behind the iron mask to focus on the intriguing complexities of the Duke of Wellington - his character, personality and relationships, told through his own words and the words of those who knew him best. General, politician, lover, outsider - the series discovers that the hero of Waterloo was far more complex than his public image. Drawing on his own vast private correspondence, as well as the diaries and memoirs of those around him, this biographical series uses dramatic reconstruction to create an intimate portrait of the Duke of Wellington, played by Richard E Grant (Withnail and I, The Iron Lady, Doctor Who).