Count Coudenhove-Kalergi was one of the most influential 20th Century European thinkers that you've never heard of. He was a pioneer of European integration, advocating for the free movement of people across European borders, a common currency and a single passport. Unsurprisingly, his ideas attracted the ire of right-wing thinkers across the continent; Hitler angrily denounced him in Mein Kampf, and even today he is the subject of a right-wing antisemitic conspiracy theory called 'The Kalergi Plan'. But how influential was his vision for Europe? In what ways did he help to shape the modern European Union? Dan is joined by the journalist Martyn Bond, author of Hitler's Cosmopolitan Bastard, to discuss his life and legacy.

Produced by James Hickmann and edited by Dougal Patmore.

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