Here was a mortal threat to the Church. We mistakenly think of medieval institutional Christianity as an immensely solid and stable structure. But in some ways it was much more vulnerable than the civil power, itself a fragile vessel. Like civil government, the regular routine of organized Christianity could easily collapse; the two often disintegrated together, under pressure. The Christian system was complex and disorganized with comparative ease; an accidental conjunction of two or more of a huge number of forces could bring about de-Christianization over quite a large area very suddenly. Thus St Bernard of Clairvaux on a preaching tour of southern France in 1145 reported that a number of heresies were common and that in large areas Catholicism, as he understood it, had disappeared. Naturally, where antinomian mobs were liable to sweep away church institutions, established authority was anxious to get them out of Christendom preferably to the East, whence few would return. These mass crusades or armed pilgrimages were usually led by unauthorized propherae or Montanists, and were a form of popular millenarianism, highly unorthodox but to some extent controlled or canalized by authority. Sometimes they attacked the Jews, regarded as devils like the Moslems, but more accessible. But if no Jews or Moslems were available, they nearly always, sooner or later, turned on the Christian clergy. Hence the anxiety to dispatch them to Jerusalem. Yet returned crusaders undoubtedly brought back heresy with them. The dualism of the Balkan Bogomils, which had links stretching right back to the agnostics, reached Italy and the Rhineland in the early twelfth century, and thence spread to France. Once long-distance movement became routine, the spread of a variety of heresies was inevitable, and crusades provided means of communication among precisely the sort of people who took religious ideas seriously and were emotionally prone. Dualism was always attractive because it explained the role of devils, who were everywhere. It was also easy to portray the visible Church as evil because of the evident failure of its theodicy that is the vindication of divine justice in respect of the existence of suffering. The Bogomils denied that Christ had established an organized Church; therefore Catholic teaching on images, saints, infant baptism and virgin birth, plus many other matters, was false. These ideas spread very rapidly in the West in the mid twelfth century; and once belief in the Church's system of confession, repentance, penance and redemption was undermined - no great problem the only Spiritual warrants were the outward signs of chastity, poverty, ascetism and humility, which the official Church, as a rule, clearly did not possess. These the heretics supplied. ‘Cathar’ was first applied to heretics in northern Europe about 1160. They were also called Publicans, Paterines (in Italy), Bougres or Bulgars in France, or Arians, Manichaeans or Marcionites. Around Albi the Cathars were termed Albigensians. The confusion over names reveals a confusion over ideas. But basically all these heresies were the same: They aimed to substitute a perfect elite for the corrupt clergy. Where they were numerous enough, as in southern France, they organized churches and bishoprics, and constituted an alternative Church. Very few of the sect were ‘perfected’ - perhaps 1,000 to 1,500 in the whole of Languedoc in c. 1200. The majority was ‘believers’, who married, led normal lives, and ‘received the consolamentum' only on their deathbeds, thus dying ‘in the hands of the Good Men’. The Cathars were well-organized and orderly people. They elected bishops, collected funds and distributed them; led admirable lives. Unlike most charismatics, they could not be broken up by a sharp cavalry charge. They got on well with the local authorities. The only effective evangelizing against them came from equally poor groups, like the Poor of Lyons, founded by a former Lyonnais merchant, Waldo, around 1173-6. These men were strictly orthodox in their beliefs, but they took apostolic poverty literally and were outside the Church's organizational structure. The clergy thus regarded the Waldensians as a threat. As Walter Map put it, when he saw some in Rome in 1179: ‘They go about two by two, barefoot, clad in woolen garments, owning nothing, holding all things in common like the Apostles. . . if we admit them, we Shall be driven out.’ They were excommunicated three years later. There was, indeed, no shortage of men prepared to defend orthodoxy. But they set standards which exposed the existing structures and personnel of the church, and thus formed a remedy more serious than the disease. Innocent Ill, despite his many 81