history podcasts/audio books?

[HaveringRob]

hi! I am planning on walking the Camino Portugues -- Coastal in November. I always enjoy reading about the history of places that I am going to travel, but I am a bit short on reading time right now. Can anyone suggest good podcasts on the history of Portugal and/or Northern Spain? I can also listen to some audio books if people have a good recommendation.

Thanks again.