[109] THE greatest and purest of Gothic churches, Notre-Dame d'Amiens, illustrates, by its fine qualities, a characteristic secular movement of the beginning of the thirteenth century. Philosophic writers of French history have explained how, in that and in the two preceding centuries, a great number of the more important towns in eastern and northern France rose against the feudal establishment, and developed severally the local and municipal life of the commune. To guarantee their independence therein they obtained charters from their formal superiors. The Charter of Amiens served as the model for many other communes. Notre-Dame d'Amiens is the church of a commune. In that century of Saint Francis, of Saint Louis, they were still religious. But over against monastic interests, as identified with a central authority--king, emperor, or pope--they pushed forward the local, and, so to call it, secular authority of their [110] bishops, the flower of the "secular clergy" in all its mundane astuteness, ready enough to make their way as the natural Protectors of such townships. The people of Amiens, for instance, under a powerful episcopal patron, invested their civic pride in a vast cathedral, outrivalling neighbours, as being in effect their parochial church, and promoted there the new, revolutionary, Gothic manner, at the expense of the derivative and traditional, Roman or Romanesque, style, the imperial style, of the great monastic churches. Nay, those grand and beautiful people's churches of the thirteenth century, churches pre-eminently of "Our Lady," concurred also with certain novel humanistic movements of religion itself at that period, above all with the expansion of what is reassuring and popular in the worship of Mary, as a tender and accessible, though almost irresistible, intercessor with her severe and awful Son.