Bright Sparks, with Helen Castor Intelligence Squared

We put the Bright Sparks questionnaire to historian Helen Castor. The writer, broadcaster and academic whose expertise focuses on the medieval and Tudor periods, discusses the evolution of the royal family and how the leaders of today compare with those of the past. Helen Castor is the author of books including Blood and Roses, She-Wolves: The Women Who Ruled England Before Elizabeth, and Elizabeth I: A Study in Insecurity. Speaking with the author for this episode is Intelligence Squared's senior producer, Tom Hall.