WEEK-WORK 103 that he often had a nucleus of servants who lived all the year at his house,1 and also that sooner or later most lords allowed their serfs to make an additional money payment in place of some or all of their works. Nevertheless, for a long time, and over large areas of England, many hundred thousands of peasants were forced throughout the year to leave their own affairs from time to time in order to do work of various kinds for their lord. We cannot generalise very exactly as to what such a demand meant. It varied on various manors, in various areas, and at various times. It was not even the same on all the manors held by any one lord. This we may say, however: in general it was a distinguishing mark between bond and free. A number of in- stances can be quoted which show free men rendering week- works, but they must be regarded as exceptional, and were so regarded by the lawyers of the thirteenth century, who more and more tended to consider the uncertainty which attached to week-works as one of the stigmata of the serf. Hence Bracton's famous definition: "For that is an absolute villainage, from which an uncertain and indeterminate service is rendered, where it cannot be known in the evening, what service is to be rendered in the morning."2 Further, we may note that the work required by the lord was roughly commensurate with the size of the holding. Everything depended upon this, and the number of mouths to be fed, or of young sons eager for work who resided on each holding, was of no account to the lord. He was concerned only with the due render of what had been determined to be the burden of such a holding. Hence a virgate-holder Js duties, which look so formidable at first sight, become far less onerous when we reflect that in all probability he was married, and had sons and daughters, and even servants of his own to help him. Thus he was able to plough his own acres and those of his lord, and to carry on a hundred and one other jobs without undue strain, by the simple method of sending one or more of his own family or helpers to the manor house, while the rest of the household carried on at home. It is true, as we have already seen, that he was expected on a few 1 See below, p. iBz. 2 Bracton, op. cit. I, 207. But see below, p. 139 n1., which shows this to be an undue simplification.