William of Paris, the confessor of Philip IV of France, was made inquisitor of France in 1305, and began a campaign against the Templars in 1307.[1] The arrest of the Templars led to Pope Clement V to suspend William's powers after a complaint from Edward II of England, but King Phillip's "bold and comtemptuous" written reply caused the Pope to back down and re-instate William.[2]
In 1310 he presided over the trial of Marguerite Porete.[1]