I like the Vlad Tepes idea best, vampIres never go out of fashion! The Jack the ripper one is tricky because they never really got a good enough description of him, someone with a cloak carrying a bag, although it is more likely he was someone with a manual job such as butcher ( as in the 'leather apron' theory) rather than a doctor and would have dressed differently.

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When you're strange no-one remembers your name