Vincent Duc de Trefle-Picques (fl. 1794) was a French wizard and nobleman, active around the time of the French Revolution; he managed to escape the Reign of Terror of 1793-1794 by casting a Concealment Charm on his neck and pretending that his head had already been cut off. In his youth, he attended Beauxbatons Academy of Magic.
Trèfle and pique are the French names for the card suits known in English as clubs and spades, respectively.
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