Judged by the number of hagæ we should have a Wallingford about five times the size of Old Windsor. Judged by the taxable capacity we should have an Old Wallingford of more than ten times the size of Old Windsor.
Here again a further element of complexity enters. It was quite out of the spirit of the Middle Ages to estimate dues, whether to a feudal superior or to the National Government, or even minor payments made to a true proprietorial owner at the full capacity of the economic unit concerned. All such payment was customary. Even where, in the later Middle Ages, a man indubitably owned (in our modern sense of the word "owned") a piece of freehold land, and let it (in our modern sense of the word "let"), it would not have occurred to him or his tenant that the very highest price obtainable for the productive capacity of the land should be paid. The philosophy permeating the whole of society compelled the owner and the tenant, even in this extreme case, to a customary arrangement; for it was an arrangement intended to be permanent, to allow for wide fluctuations of value, and therefore to be necessarily a minimum. If this was the case in the later Middle Ages where undoubted proprietary right was concerned, still more was it the case in the early Middle Ages with the customary feudal dues; these varied infinitely from place to place, rising in scale from those of privileged communities wholly exempt to those of places such as we believe Old Windsor to have been, which paid (and these were the exceptions), not indeed every penny that they could pay (as they would now have to pay a modern landlord), but half, or perhaps more than half, such a rent.
Where Wallingford stood in this scale it is quite impossible to say, and we can only conclude with the very general statement that the Wallingford of the Conquest consisted of certainly more than 5000 souls, more probably of 10,000, and quite possibly of more than 10,000.
Having taken Wallingford with its minute and valuable record as a sort of unit, we can roughly compare it with other centres of populations upon the river at the same date.
Old Windsor we have already dealt with, and made it out from a fifth to a tenth of Wallingford. Reading was apparently far smaller. Indeed Reading is one of the puzzles of the early history of the Thames Valley. We have already seen in discussing these strategical points upon the river what advantages it had, and yet it appears only sporadically in ancient history as a military post. The Danes hold it on the first occasion on which we find the site recorded, in the latter half of the ninth century: it has a castle during the anarchy of the twelfth, but it is a castle which soon disappears. It frequently plays a part in the Civil Wars of the seventeenth, but the part it plays is only temporary.
And Reading presents a similar puzzle on the civilian side. It is situated at the junction of two waterways, one of which leads directly from the Thames Valley to the West of England, yet it does not seem to have been of a considerable civil importance until the establishment of its monastery; and even then it is not a town of first-class size or wealth, nor does it take up its present position until quite late in the history of the country.
At the time of the Domesday Survey it actually counts, in the number of recorded enclosures at least, for less than a third of Old Windsor; and we may take it, after making every allowance for possible omissions or for some local custom which withdrew it from the taxing power of the Crown, for little more than a village at that moment.
The size of Oxford at the same period we have already touched upon, but since, like every other inference founded upon Domesday, the matter has become a subject of pretty violent discussion, it will bear, perhaps, a repeated and more detailed examination at this place.
Let us first remember that the latest prejudice from which our historical school has suffered, and one which still clings to its more orthodox section, was to belittle as far as possible the general influence of European civilisation upon England; to exalt, for example, the Celtic missionaries and their work at the expense of St Augustine, to grope for shadowy political origins among the pirates of the North Sea, to trace every possible etymology to a barbaric root, and to make of Roman England and of early Medieval England—that is, of the two Englands which were most fully in touch with the general life of Europe—as small a thing as might be.
In the light of this prejudice, which is the more bitter because it is closely connected with religion and with the bitter theological passions of our universities, we are always safe in taking the larger as against the smaller modern estimates of wealth, of population and of influence, where either of these civilisations is concerned, and, conversely, we are always safe in taking at the lowest modern estimate the numbers and effect of the barbaric element in our history.