Willem Crap's "Flying Cat of Vervier Town" (1730)

The title says it all. A shame posterity appears not to have preserved any further works by Mr Crap.

As for the subject, apparently it's a famous object of Belgian folklore, at least according to this online Belgian newspaper, which ran a feature on a bar called 'Le tchèt volant' in 2012: 'Tchèt Volant: [c'est] littéralement “le chat volant”, un animal emblématique du folklore verviétois, qu’on avait essayé de faire voler en montgolfière'. So there you have it.