Episode 212 - Who went on Crusade and why?

How many people went on Crusade? Who were they and who was in charge of them? Why did they go? What does all this mean for Byzantium?<br /><hr><p style='color:grey; font-size:0.75em;'> See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for privacy and opt-out information.</p>