Lully, Raymond, the Doctor Illuminatus, as he was called, born at Palma, in Majorca, who was early smitten with a zeal for the conversion of the Mohammedans, in the prosecution of which mission he invented a new method of dialectic, called after him Ars Lullia; held public discussions with the Mohammedans, who showed themselves as zealous to convert him as he was to convert them, till he ventured in his over-zeal when in Africa among them to threaten them with divine judgment if they did not abjure their faith, upon which they waxed furious, dragged him out of the city, and stoned him to death in the year 1315; his works, several on alchemy, fill 16 volumes.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Lulli * Lunar Cycle