One has primarily to look for an explanation of these great privileges to manors, which had been granted by the king to private lords. On such lands the 'little writ' lay both when 'villain socmen' were pleading against each other[162], and when a socman was opposed to his lord as a plaintiff[163]. This last eventuality is, of course, the most striking and important one. There were some disputes and some mistakes in practice as to the operation of the rule. The judges were much exercised over the question whether an action was to be allowed against the lord in the king's court. The difficulty was, that the contending parties had different estates in the land, the one being possessed of the customary tenancy in ancient demesne, and the other of the frank fee. There are authoritative fourteenth-century decisions to the effect that, in such an action, the tenant had the option between going to the court at Westminster or to the ancient demesne jurisdiction[164]. The main fact remains, that a privileged villain had 'personam standi in judicio' against his lord, and actually could be a plaintiff against him. Court rolls of ancient demesne manors frequently exhibit the curious case of a manorial lord who is summoned to appear, distrained, admitted to plead, and subjected to judgment by his own court[165]. And as I said, one looks naturally to such instances of egregious independence, in order to explain the affinity between privileged villainage and freehold. The explanation would be insufficient, however, and this for two simple reasons. The passage of the manor into the hands of a subject only modifies the institution of ancient demesne, but does not constitute it; the 'little writ of right' is by no means framed to suit the exceptional case of a contention between lord and tenant; its object is also to protect the tenants against each other in a way which is out of the question where ordinary villainage is concerned. The two reasons converge, as it were, in the fact that the 'little writ of right' is suable in all ancient demesne manors without exception, that it applies quite as much to those which remain in the crown as to those which have been alienated from it[166]. And this leads us to a very important deduction. If the affinity of privileged villainage and freehold is connected with the 'little writ of right' as such, and not merely with a particular application of it, if the little writ of right is framed for all the manors of ancient demesne alike, the affinity of privileged villainage and freehold is to be traced to the general condition of the king's manors in ancient demesne[167].