has put himself on our grand assise and asks that a recognition be made as to which of  them has the greater right in that land. And let the same be done in all other grand  assises, as may be seen below [in the portion on] grand assises.1 If the plea of right is in  a lord's court, let the prohibition then issue to the guardian or bailiff by this writ.
Let a prohibition issue to the guardian or bailiff.
 The king to the sheriff, greeting. Forbid the bailiff (or the guardian of the land and  heir of A.) to hold the plea which is in the court of the same guardian (or the bailiff of  such an honour etc., as above). Or if the prohibition ought to be directed to the lord  of the court, then thus: Forbid A. to hold the plea in his court between A. the demandant  and B. the tenant with respect to so much land with the appurtenances in  N. which the same A. claims against the same B. by our writ of right etc.2 If the plea is  between the parties in the county court with respect to services and customs by a writ  of right patent, or by the writ for justicing someone to do customs and right services,  and the tenant puts himself on the grand assise, which he may well do, he will have a  writ of peace to the sheriff which is called Prohibemus,3 which will be this:
[there is] a plea in the county about services and customs.  4The king to the sheriff, greeting. We forbid you to hold the plea which is in your  county court between A. the demandant and B. the deforciant concerning the customs  and services which the aforesaid A. demands of the aforesaid B. [from the free  tenement which he holds of him in N. as to which there is a plea between them] by our  writ [of right],5 unless the duel has been waged therein, because the same B. the  tenant, has put himself in our grand assise and asks that a recognition be made as to  whether he owes the aforesaid A. from the aforesaid tenement such service and so  much a year for all service, as he acknowledges, or the same service and so much more,  as the same A. demands from him. Witness etc. This writ is varied in many ways  according to the variety of services. It sometimes happens that he who has put himself  on the grand assise with respect to services and customs, and has sued out his writ  of peace until the coming of the justices, is nevertheless distrained in the interim for  the same services by the chief lord, in which case provision is made for him by this  writ.
If he who has put himself on the grand assise concerning services and customs, and has a writ of peace, is distrained by his lord while the plea is pending.
 The king to the sheriff, greeting. Such a one shows us that though he has brought you  our writ for the having of peace until the coming of the justices to those parts