Bierce, the King of Autumn, is also known as the Masked King. They never show their real face, covering it with a mask of leaves and vines. The mask shifts and reshapes itself to match Bierce's moods - or so it is believed.
Some fey of other Courts say they wear the mask to hide their intentions. But Bierce alone knows the reason for the mask, and confounds all who ask to see their true face. Those who persist... well. The palace garden ever wants for company.