In this second part of our series, Juana has become her mother's unlikely heir. Just a few years after inheriting Castile, she is declared insane and imprisoned. But was she actually mad? And why didn't her son free her when he came to power?
Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htm
And to learn about your ad choices when listening to podcasts, visit
https://www.howstuffworks.com/privacy.htm#ad-choices