Prince Philip was born, er, a prince — and then, of course, went on to marry a queen — but he had a challenging childhood. A central figure in his adolescence was his mother's brother, an aristocrat named George Mountbatten, who provided Philip with a stable family life (for a time).

But George sadly died young, when Philip was only 17, and as a result the uncle's story is a mere footnote in royal biographies. But even those tiny mentions usually include a unique detail about Unky G. He was a collector. He collected model trains. And — oh yeah! — he spent millions in today’s money amassing one of the world’s largest collections of erotic imagery.

And this is where we pick up today, retracing Philip's footsteps to his uncle's family home, and establishing why one of the 20th century's biggest British political scandals forced the Mountbattens to divest themselves of the 'curious collection.'