Final answer:
The reference material does not provide the specific answer to which Pope and Inquisitor held that witchcraft was not the concern of the heresy inquisition. Historically, witchcraft was included in the duties of the inquisitors to combat as heresy, especially under the authority of Pope Innocent VIII.
Step-by-step explanation:
The correct answer to which Pope and Inquisitor insisted that witchcraft was not in the purview of the heresy inquisition is not explicitly stated in the provided reference material. However, based on historical records, none of the pairs (Pope Innocent VIII and Heinrich Kramer, Pope Gregory IX and Bernard Gui, Pope Alexander VI and Nicholas Eymeric, Pope Urban II and Jacques Fournier) are noted for taking a strong stance that witchcraft was outside the jurisdiction of the heresy inquisition. In fact, Pope Innocent VIII wrote the papal bull 'Summis desiderantes affectibus' in 1484 which recognized the existence of witches and allowed for the Inquisition to deal with them as part of its mandate to combat heresy. Heinrich Kramer, one of the authors of the infamous witch hunter's manual 'Malleus Maleficarum', was under the authority of Innocent VIII when the bull was issued. None of the options provided explicitly reflects a Pope-Inquisitor pair who argued against including witchcraft as a part of heresy inquisitor proceedings.