Robert Hardman & Catherine Mayer: Elizabeth II and Battles Royal

Marking the centenary of Queen Elizabeth II, royal biographer Robert Hardman assesses her long and eventful reign in his book Elizabeth II. He is joined by journalist Catherine Mayer, author of Charles, The Heart of a King, whose forthcoming book Divide and Rule: Royal Women and their Battles examines the rivalries and relationships that shaped the monarchy. Chaired by Julian Worricker, BBC presenter and one of its royal events commentary team.