An interesting journal article on the taxing of Castille.
Adam Tooze’s Wages of Destruction, referenced in this episode, if anybody is interesting in reading.
Extra details and pictures of the fortification of Brest!
A 3D model of the frtification. https://3dwarehouse.sketchup.com/model/u877d56be-4bf7-49d7-b590-3fccc710a429/Brest-Fortress?hl=en
An introduction to the Irish language of Ulster. It sounds beautifully mystical and fae-like to me.