Prince Harry's explosive new memoir is out today and headlines, articles and tweets all weighing in on the rift between the royals are everywhere. In the past warring royal siblings fought it out on the battlefield or in duplicitous schemes of murder, but today it plays out in the media.

Historian of Monarchy Anna Whitelock joins Dan to talk about the dynamics of royal families, the dangers of hereditary power and some of the most important royal sibling rivalries through history including Henry VIII and Arthur, Prince of Wales, Elizabeth I and Mary Tudor and William II and Henry I.

Produced by Mariana Des Forges and James Hickmann. Edited by Dougal Patmore.

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