2010 Reprint of 1909 Edition. Illustrated. The Key of Solomon, in Latin Clavis Salomonis or Clavicula Salomonis, is a grimoire, or book on magic, attributed to King Solomon, probably dating to the 14th to 15th century Italian Renaissance and presenting a typical example of Renaissance magic. The text dates to the Late Middle Ages or the Italian Renaissance. Many such grimoires attributed to King Solomon were written in this period, ultimately influenced by earlier (High Medieval) works of Jewish kabbalists and Arab alchemists, which in turn hark back to Greco-Roman magic of Late Antiquity. This scholarly edition of the Latin manuscript in the British Library was published by S. L. MacGregor Mathers in 1889.