Work on the cathedral was taken up with energy after Jeanne, carrying her standard, had hallowed the streets of Troyes. As the XV century closed, the nave's radiant late-Gothic windows were installed. They are of the _Biblia pauperum_ type, and are surprisingly like big translucent woodcuts. They tell the story of Daniel, Tobias, Joseph and his brethren, Job--a window especially to be noticed--some parables, too, and edifying legends. The scenes are set quite as they appeared in the mystery plays, the costumes being not of Syria, but of the very stuffs and damasks bought in their own international fairs. The same masters of Troyes, Verrat, Godon, Lyénin, Macadré, who signed a rose window of Sens transept, put their signatures here. Bible stories such as these suit the layman's part of a church, for they serve to hold the attention of the average man. In the choir of Troyes are thirteen large windows of an earlier day, profounder in color and more spiritual in suggestion. They are like a jeweled cloistral screen around the Holy of Holies. In the upper central windows are the Passion scenes, and on either side rise tier on tier of martyrs who witnessed to the Faith--bishops, abbots, and a few important personages, such as Pope Innocent III, Bishop Hervé, the builder, and the archbishop of Sens, the learned Pierre de Corbeil. On one side of the choir Henry I, emperor of Constantinople, of the house of Champagne, is pictured, and Philippe-Auguste, suzerain of Champagne. And opposite in the fourth window are donjons and fleurs-de-lys showing that the queen-regent, Blanche of Castile, was generous here as elsewhere. The upper choir windows of Troyes allowed more light to pass than had their immediate predecessors, the lancets of Chartres. Their colors were clear and bright; only such stone mullions were used as were absolutely required for the support of the glass. The eight lateral windows of the upper choir belong to the XIII century, the five at the eastern curve to the XIV century. In the lower choir are various ancient windows, liberally restored, the Tree of Jesse, of Byzantine character, being the best. Two hundred years later another Tree of Jesse was made by Lyénin,[145] for the clearstory of the nave. It gave Christian folk a feeling of pride to record the Lord's high ancestry according to Isaias and the Acts. This cathedral of Troyes was one of the first to glaze its triforium, even before St. Denis' abbatial. The present triforium lights are, in most part, modern.