Of the little priory at Lechlade very little is known, save that it was founded in the thirteenth century and had disappeared long before the Reformation, while of that at Cricklade we know even less, save that it humbly survived and was counted in the "bag" at only four pounds a year. With Dorchester, which had existed from the twelfth century, and which was worth almost half as much as Eynsham, and with the considerable Cell of Hurley which attached to Westminster, the list is complete. It is interesting to know that the church at Dorchester was saved by the local patriotism of one man, who left half his fortune for the purchase of it, and that not in order to ruin it and to sell the stones of it, but in order to preserve it: a singular man. In a general survey of monastic influence in the Valley of the Thames, it would be natural to omit the foundations which belonged to the later Middle Ages. It was in the Dark Ages that the great Benedictine work was done, the pastures drained, the woods planted, the settlements established. It was in the early Middle Ages, in the twelfth and thirteenth centuries and in the first half of the fourteenth--in a word, before the Black Death--that the work of the new and vigorous foundations, and the revived energy of the older ones, spread Gothic architecture, scholastic learning, and the whole reinvigorated social system of the time, from Oxford to Westminster; and the historian who notes the social and economic effects of monasticism in Western Europe, however enthusiastic he may be in defence of that force, cannot with truth lend it between the Black Death and the Reformation a vigour which it did not possess. It had tended to become, in the fifteenth century, a fixed social institution like any other, one might almost say a bundle of proprietary rights like any other. And though it is easy now to perceive what ruin was caused by the sudden destruction, the contemporaries of the last age of Great Houses were perpetually considering their privilege and their immovable tradition rather than the remaining functions which the monasteries fulfilled in the State. On this account historical notes dealing with the development of the Thames Valley would naturally omit a reference to foundations existing only from the close of the Middle Ages. But an exception must be made to this rule in the case of Sheen.