There is a curious explanatory gloss, in a Cambridge MS. of Bracton, which seems to go back at least to the beginning of the fourteenth century, and it maintains that free stock doing villain service lapses into villainage in the fifth generation only[69]. On the other hand, Britton flatly denies the possibility of such a thing; according to him no length of time can render free men villains or make villains free men. Moreover he gives a supposed case (possibly based on an actual trial), in which a person claimed as a villain is made to go back to the sixth generation to establish his freedom.[70] It does not seem likely that people could often vindicate their freedom by such elaborate argument, but the legal assumption expounded in Britton deserves full attention. It is only a consequence of the general view, that neither the holding nor the services ought to have any influence on the status of a man, and in so far it seems legally correct. But it is easy to see how difficult it must have been to keep up these nice distinctions in practice, how difficult for those who for generations had been placed in the same material position with serfs to maintain personal freedom.[71] For both views, though absolutely opposed to each other, are in a sense equally true: the one giving the logical development of a fundamental rule of the law, the other testifying to the facts. And so we have one more general observation to make as to the legal aspect of villainage. Even in the definition of its fundamental principles we see notable discrepancies and vacillations, which are the result of the conflict between logical requirements and fluctuating facts. [Criminal law in its relation to villainage.]