BBC Radio 3's annual Free Thinking festival of ideas hits the road this summer as it takes up residency at leading summer events across the country. Rana Mitter chairs a debate from the York Festival of Ideas on the legacy of the War of the Roses with Helen Castor, Sandy Grant and Mark Ormrod reflecting on how the Wars of the Roses shaped the country from the 15th century right up to the present day. In the year that Richard III's remains were identified beneath a Leicester Car Park, why does the Wars of the Roses continue to exert such a hold over our imaginations, from Game of Thrones to new BBC series The White Queen?