Novelty in this paper refers to a new idea or institution. I shall not distinguish between religious, social and political novelties, since medieval churchmen did not do so. The church concerned herself with every aspect of Christian life: any change in men’s way of living affected her either directly or indirectly and generally the former.
I shall begin by quoting four examples of attitudes to novelty. My first two come from the late eleventh and early twelfth centuries. One will illustrate an attitude to new ideas, the second to a new institution. The distinction is artificial, but convenient. Men normally think up ideas in order to justify or criticise institutions. First listen to an anonymous opponent of Manegold of Lautenbach. Manegold contributed an extremist theory to papal polemic in the gregorian reform movement in order to explain and justify Gregory’s action in declaring the emperor Henry IV deposed and absolving subjects from their oath of allegiance (1085).