Entrance to the upper, or Kaiser, Chapel is only possible from the lower rooms of the Castle, whence, above the flight of steps already referred to, a Gothic doorway now leads to the chapel, by way of a vestibule or entrance hall. This hall is situated exactly over the western irregular section of the lower chapel. The low stout pillars which support the vaulting correspond in their ornamentation with that of the lower chapel. On the hexagonal capitals of one we find four of the familiar mediæval masks, whilst on both of them the sculptured foliage and basket-work recall that of the Margaret Chapel. In the wall which separates the vestibule from the Castle a small connecting staircase leads up to a platform, which opens out in two arches towards the chapel and probably formed the Imperial oratory. It is in immediate connection with the upper rooms of the Castle by means of a Gothic door which has replaced a romanesque gateway. Thus the Emperor could easily reach his seat in the chapel from the Castle. Ascending three steps, one arrives through a broad archway at the raised choir, which also resembles the Margaret Chapel in its ornamentation. But the most striking and distinctive feature of the Kaiserkapelle, which gives it its characteristically light and graceful appearance, is the four slender columns of white marble, with richly decorated capitals and bases, which support the vaulting. One of the columns is built of two pieces. An unwrought ring covers the seam. Hence arose the legend that, at the time when the chapel was building, the Devil, who lusted after the soul of the Castle chaplain, wagered him that he would bring these four pillars from Milan sooner than the priest could read the Mass. The priest, who had a glib tongue, cheerfully undertook the wager. The Devil was quick, but the chaplain was quicker. The Devil had already brought three columns, and the fourth was close at hand, when the nimble priest said "Amen." So infuriated was the Devil at losing his wager that he flung down the pillar. It fell so heavily on the floor that it broke in two, and had to be bound together with the ring. The coloured stone head above the choir-arch is supposed to be a memorial of this castle chaplain, who so cleverly obtained cheap transport for the Church! Without taking this legend altogether _au pied de la lettre_, we may think it likely from the style and material that these pillars were brought from some Italian building.