The subject is important, not only because its treatment shows to what extent the whole law of social distinctions was still in a state of fermentation, but also because the classification of tenures according to the nature of customs may afford valuable clues to the origin of legal disabilities in economic and political facts. The plain and formal rule of later law, which is undoubtedly quite fitted to test the main issue as to the power of the lord, is represented in earlier times by a congeries of opinions, each of which had its foundation in some matter of fact. We see here a state of things which on the one hand is very likely to invite an artificial simplification, by an application of some one-sided legal conception of serfdom, while on the other hand it seems to have originated in a mixture and confusion of divers classes of serfs and free men, which shaded off into each other by insensible degrees. [The procedure in questions of _status_.] The procedure in trials touching the question of status was decidedly favourable to liberty. To begin with, only one proof was accepted as conclusive against it--absolute proof that the kinsfolk of the person claimed were villains by descent[122]. The verdict of a jury was not sufficient to settle the question[123], and a man who had been refused an assize in consequence of the defendant pleading villainage in bar had the right notwithstanding such decision to sue for his liberty. When the proof by kinship came on, two limitations were imposed on the party maintaining servitude: women were not admitted to stand as links in the proof because of their frailty and of the greater dignity of a man, and one man was not deemed sufficient to establish the servile condition of the person claimed[124]. If the defendant in a plea of niefty, or a plaintiff in an action of liberty, could convincingly show that his father or any not too remote ancestor had come to settle on the lord's land as a stranger, his liberty as a descendant was sufficiently proved[125]. In this way to prove personal villainage one had to prove villainage by birth. Recognition of servile status in a court of record and reference to a deed are quite exceptional.