The message of the crusade was preached in France by Robert of Courçon; however, unlike other Crusades, not many French knights joined, as they were already fighting the Albigensian Crusade against the heretical Cathar sect in southern France. In 1215 Pope Innocent III summoned the Fourth Lateran Council, where, along with the Latin Patriarch of Jerusalem, Raoul of Merencourt, he discussed the recovery of the Holy Land, among other church b...