As Britain marks Queen Elizabeth II's platinum jubilee this weekend, Dr Patrick Geoghegan is joined by an esteemed panel of experts to discuss the ups and downs of the monarch's 70 years on the throne. Featuring Dr Carolyn Harris, an expert in the history of European monarchy, an instructor in history at the University of Toronto and royal commentator; Professor Philip Murphy, author of ‘Monarchy and the End of Empire: The House of Windsor, the British Government, and the Postwar Commonwealth’ and ‘The Empire’s New Clothes: The Myth of the Commonwealth’, and Director of History and Policy at the Institute of Historical Research at the University of London; and Professor Irene Morra of Cardiff University, currently Visiting Professor in English Literature at the University of Toronto, and author of ‘The New Elizabethan Age: Culture, Society, and National Identity after World War II’.