Some of the most admirably sculptured capitals in Auvergne are at Mozac, a suburb of Riom.[211] The nave of Mozac's abbey church was built from 1131 to 1147 by a brother of Peter the Venerable, who made Cluny's nave, and of the doughty abbot, Pons de Montboissier, who erected Vézelay's portico of paradise, all three of them belonging to a feudal family of Auvergne. The small abbatial holds a priceless treasure, the reliquary of St. Calmin, which an abbot presented in 1168. Its fourteen panels of Limoges enamel are ornamented in gold. A bold attempt was made to rob the church of this national heritage, so it is now protected by electric bells and every kind of burglar alarm. "_Clermont le riche, Riom le beau_," so ran the old saying. Riom, the small but proud rival of the capital of Auvergne, was a town of magistrates who built themselves Gothic Renaissance houses as individual as the pre-Gothic work of the province. The church of St. Amable has a Romanesque nave and an early-Gothic choir. Jean, Duke of Berry, had Guy and André de Dammartin design the XIV-century Sainte-Chapelle for his palace at Riom. Its brilliantly cold stained glass was commanded for the wedding, in 1389, of sixty-year-old Duke John and the thirteen-year-old heiress, Jeanne de Boulogne. Froissart has described the curious union. Each window panel has a single statue under a canopy; the prophets and apostles carry appropriately inscribed scrolls. A XV-century window, representing the Bourbon dukes, Jean II and Pierre II, patrons of Moulins, contains a St. Marguerite so similar to one in the "Book of Hours" which Jehan Fouquet painted for Étienne Chevalier that the window is thought to be designed by the great _primitif_ of Tours. It may be to artists of Jean de Berry's entourage that we owe the most entrancing Madonna of Flamboyant art, the _vierge à l'oiseau_, an image in the regional stone which stands at the trumeau of the XV-century church of Notre Dame-du Mathuret. One student after another has discussed the date of this exquisite figure, so purely French in essence, whose simplicity is as ample and unaffected as the best XIII-century art. Work as exceptional as this is of no date or school, but is due to some unrecorded individual genius. In that same late-Gothic day the spirit of St. Louis and Joinville lived again in _The Very Joyous, Pleasing and Diverting History of the Gentle Lord of Bayard, written by the Loyal Servitor_.