For the third episode in our mini-series on the Crusades, we dive into the 1291 Siege of Acre - the desperate, violent last stand that ended two centuries of crusading in the Holy Land. We hear how, outnumbered, divided and desperate, the Christian defenders fought to the bitter end against the Mamluk forces of Al-Ashraf Khalil.

For this series, we're joined by Steve Tibble, author of many books on the Crusades, including 'The Crusader Strategy: Defending the Holy Land'.