This fixes _Tumba_ as the name of Mont St. Michel before the tenth century, for the ancient author from whom Mabillon quotes wrote before the middle of the tenth century, and before Duke Richard had replaced the priests of St. Michel by Benedictine monks. _Tumba_ remained, in fact, the recognized name of the Norman Mount, and has survived to the present day. The church and monastery there were called “_in monte Tumba_,” or “_ad duas Tumbas_,” there being in reality two islands, the principal one called _Tumba_, the smaller _Tumbella_ or _Tumbellana_. This name of _Tumbellana_ was afterwards changed into _tumba Helenæ_, giving rise to various legends about Elaine, one of the heroines of the Arthurian cycle; nay, the name was cited by learned antiquarians as a proof of the ancient worship of Belus in these northern latitudes. The history of Mont St. Michel in Normandy is well authenticated, particularly during the period which is of importance to us. Mabillon, quoting from the chronicler who wrote before the middle of the tenth century, relates how Autbert, the Bishop of Avranches, had a vision, and after having been thrice admonished by St. Michael, proceeded to build on the summit of the Mount a church under the patronage of the Archangel. This was in 708, or possibly a few years earlier, if Pagius is right in fixing the dedication of the temple in 707.(92) Mabillon points out that this chronicler says nothing as yet of the miracles related by later writers, particularly of the famous hole in the Bishop’s skull, which it was believed St. Michael had made when on exhorting him the third time to build his church, he gently touched him with his archangelic finger. In doing this the finger went through the skull, and left a hole. The perforated skull did not interfere with the Bishop’s health, and it was shown after his death as a valuable relic. The new church was dedicated by Autbert himself, and the day of the dedication (xvii. Kalend. Novemb.) was celebrated, not only in France, but also in England, as is shown by a decree of the Synod held at Oxford in 1222. The further history of the church and monastery of St. Michel may be read with all its minute details in Mabillon, or in the “Neustria Pia” (p. 371), or in the “Gallia Christiana” (vol. ix. p. 517 E, 870 A). What is of interest to us is that soon after the Conquest, when the ecclesiastical property of England had fallen into the hands of her Norman conquerors, Robert, Earl of Mortain and Cornwall, the half-brother of William the Conqueror, endowed the Norman with the Cornish Mount. A priory of Benedictine monks had existed on the Cornish Mount for some time, and had been richly endowed in 1044 by Edward the Confessor. Nay, if we may trust the charter of Edward the Confessor, it would seem that, even at that time, the Cornish Mount and its priory had been granted by him to the Norman Abbey, for the charter is witnessed by Norman bishops, and its original is preserved in the Abbey of