When King John sealed Magna Carta in 1215, it was meant to end a civil war. Instead, it sparked an idea that still resonates today.

In this episode, we explore two medieval documents that shaped ideas about power in society - Magna Carta and the 1265 summons list for a parliament led by the charismatic baron Simon de Montfort.

This is the first instalment of our mini-series People and Power, which looks at how people have challenged authority and fought to have their voices heard in Britain. Our guests are Paul Dryburgh and Jessica Nelson, historians at The National Archives.