The disk was created by Bartimeo Magnus, master alchemist to Holy Roman Emperor King Charles V (who lived from 1500-1558). The original conquistador, Fernando El Aguirre, used the disk to mark the spot where he buried a crystal sarcophagus filled with black pearls that he stole from a temple somewhere in Central America. He later broke the disk apart to make sure no one knew where it was. The Spaniard had two pieces with him, but before he descended into madness the two pieces made it into the hands of some mystery solving Franciscan monks, the Fraternitas Mysterium.