The king had vowed, were his arms successful, to endow an abbey. Bishop Guérin laid for him the first stone of the Abbaye de la Victoire, near his episcopal city.[52] Before this greatest of the bishops of Senlis died, his cathedral had begun to crown its southwest tower by the octagon and spire which are the boast of all the Valois country. St. Louis must have contributed to Senlis' famous tower, which places in foremost rank, this, the smallest cathedral in France. The unknown architect gathered features from many a beacon to unite them here in a masterpiece. He may be said to have created a new type, since his belfry at Senlis made a school in the region.[53] The graduation of the upright shaft into the inclined plane, which in every tower is the crucial point, has here been accomplished with such address, such rhythm, that precisely at what instant the fusion takes place is not to be determined. It has been said that the shaft of the tower is too high in proportion to its spire; at a distance perhaps the criticism may seem justified, but not on closer view. Some have thought that Senlis' belfry was a trifle too conscious of its charms, that it had not the calm poise of Chartres' tower. So it may be; there is more of the woman than the archangel in it. Its personal graciousness has become so wedded with the lives of Senlis' townspeople that they wish it good morning as they pass. The voyager will not find himself many hours in Senlis without pausing at every coign of vantage to gain some new silhouette effect of the slender beacon. It is charming when viewed in the same group as the Gallo-Roman ramparts. And from the open door of the church of St. Frambourg,[54] it can be studied at leisure. In the original plan of Senlis' Cathedral there was only an indication of a transept--two small lateral chapels that open, to-day, from the choir aisle. When, about 1240, the radiant tower was finished they undertook to make a real transept. To insert one they had to do away with four bays of the nave; some ancient columns in the west piers of the transept witness to this change. In its present form the transept of Senlis belongs to the XIII century only in its lower walls.