The Church, dedicated to the saints Gervais and Protais, is a building of wonderful charm, and peeps of its Flamboyant carving, seen through narrow passages between antique timber-framed houses, are some of the delights of the town. The earliest portion of the building is the choir, with its aisles, built in the thirteenth century through the generosity of Queen Blanche, who was Regent for her son during his minority, and while he was away crusading in the Holy Land (see under Pontoise). The nave, chapels, and towers date from the fourteenth to sixteenth centuries, the wonderfully enriched north portal is Flamboyant, and the west end, with its two unfinished towers, belongs to the Renaissance period, as at Evreux (Section III.). The towers were stopped at their present height, for fear that they might be used against the castle if the town were occupied by an enemy. Jacob’s vision of the angels is shown in a very fine carving over the central west door. The architects of the church in the sixteenth century were chiefly members of the family of Grappin, and it was Robert Grappin who, in 1530, built the nave in such a hurry that it collapsed, but within a decade it had been rebuilt. Of the interior there is only space to mention the exceedingly interesting carved pillars; the huge Tree of Jesse in the baptistery; the chapel, containing a skeleton in stone; twenty-eight sixteenth-century painted panels, showing legends of the lives of the patron saints of the Church; the beautiful vaulted aisles of the choir; and, finally, the sixteenth-century glass of the windows. [Illustration: No. 27. GISORS TO ROUEN.] The conferences between the English and French kings were held under an elm that grew upon the boundary, and under its shade, in 1188, Henry II. of England and Philippe Auguste held a peace conference, at which the aged Archbishop of Tyre appeared, and implored the monarchs to lead armies to aid in driving the infidels from the Holy City. It was agreed that both should lead a crusade in two years’ time; but in the following year, having fallen out, they were at war again, and Philippe soon afterwards cut down the tree. Going out of Gisors by the street that leads approximately southwards, a tributary of the Epte is crossed by a bridge bearing a gilded statue to Our Lady, and just afterwards a level-crossing, where one turns to the right by the railway, soon afterwards passing (on the right) a very interesting example of the fortified farm, having a squat round tower at each corner. Further off, beyond the river, appears the ruined tower of the castle of Neaufles.