In The Art of Cyprian’s Mirror of Four Kings, Alexander Cummins illuminates the Cyprianic dimensions of the directional courts of the various cardinal kings and their messenger-king attendants in the grimoiric corpus.
 
The Art of Cyprian, found in MS Sloane 3850, contains instructions for the construction and use of a magic mirror attributed Saint Cyprian of Antioch. Along with the preparation of the mirror itself – which includes making and consecrating a particular ink for drafting certain figures of Solomon – come instructions detailing a conjuration of the ‘four worthy princes of the earth’, including a special appeal to the King of the East as their primus inter pares, and a dismissal of these same ‘four kings of the four parts of the world’.