In a standard set of playing cards, which is the only king without a moustache?

The story behind the answer

Hearts is correct because, in the standard Anglo‑American deck, the King of Hearts is the only king without a moustache. Over centuries of copying and recarving the original French Rouen designs, small details changed or were lost—his moustache disappeared while the other kings (Spades, Clubs, Diamonds) kept theirs.

He’s also nicknamed the “suicide king” because he appears to drive a sword into his head—another quirk born from design simplifications (earlier versions showed a battle axe). Memory tip: think “heartthrob king”—the romantic, clean‑shaven Heart(s) king. So, if you must pick the moustache‑less monarch, choose Hearts.