Sir John Fortescue is underappreciated today despite being the leading political thinker in England in the 15th century. His concept of a dominium politicum et regale, articulated in the midst of the Wars of the Roses, recognised that the governance of England rests on political consultation rather than unfettered executive fiat. In this episode Leader of the House of Commons Jacob Rees-Mogg explores Sir John's life and times with Dr Hannes Kleineke of the History of Parliament Trust.