For the Plantagenets, family might be a curse as often as a boon. They could provide invaluable support, or dangerous rivalry. At the end of the 14th century, the relationship between two first cousins rocked England, ruptured the line of succession and had a long legacy.

Helen Castor joins Matt Lewis to discuss the fascinating true story of cousins who became deadly rivals.

Gone Medieval is presented by Matt Lewis. The editor is Ella Blaxill and the producer is Joseph Knight. The senior producer is Anne-Marie Luff.

Gone Medieval is a History Hit podcast.

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