could be appurtenant, nor had he nor any ancestor ever been in seisin of the presentation,  though many confirmations of [the gift] had been made by chief lords and also  by bishops, because the gift was completely void, neither begun, so to speak, nor  completed. To the same intent [in the roll] of Easter term in the tenth year of king  Henry in the county of Leicester, an assise of darrein presentment between Walter  of Rideware and the prior of Dudelegh concerning the church of Seyle,1 where it is  said that the aforesaid Walter could take nothing because the earl de Ferrers, who  gave the manor to which that advowson belonged to the aforesaid Walter, did so  before he had presented. To the same intent [in the roll] of Michaelmas term in the  ninth and the beginning of the tenth years of king Henry in the county of York, an  assise of darrein presentment between the prior of Lewes and Adam of Newmarket  concerning the church of Hatfield,2 where the case was this: a certain person, the  grandfather, that is, of the same Adam on his mother's side, presented to the aforesaid  church and afterwards gave the manor with the advowson in maritagium with  his daughter to a certain person. Before the church had become vacant they gave that  land with the advowson over in maritagium with one of their own daughters. The  church did not become vacant in their lifetime but first became so in the time of their  heirs. The aforesaid Adam brought an assise of darrein presentment on the seisin of  his grandfather aforesaid, the first donor, and recovered by the assise notwithstanding  the gift, because the first donee never had seisin of the presentation.
[Quare impedit:] When one is summoned [to answer] why he impedes.  Not everyone to whom a presentation belongs can sue on his own seisin or that of his  ancestors, as in the cases above. Hence for those who have never presented, though  the right to present belongs to them, for life or in perpetuity, through some causa  of acquiring, through the causa of gift or in some other way, [as where] they have  recovered by judgment a right they never had,3 a remedy lies for them, if they are  impeded so that they cannot present, by this writ.
The writ of Quare impedit.
 The king to the sheriff, greeting. Since A. has made us secure with respect to his  claim etc., put B. by gage and safe pledges that he be etc., to answer the same A. as  to why he impedes the same A. from presenting a suitable parson to
1. B.N.B., no. 1758; C.R.R., xii, no. 2641; supra ii, 164
2. B.N.B., no. 1685; C.R.R., xii, no. 1423; supra ii, 164