The charters which here follow are for the most part printed for the first time. The originals of six of them are preserved among the abbey muniments (nos. 6, 7, 23, 24, 35, 36). The rest come from Westminster chartularies, and offer for the most part texts of the end of the thirteenth or the beginning of the fourteenth centuries, a few being only of the fifteenth century. I have described these books elsewhere, and will only speak briefly of them here. The Westminster ‘Domesday’ (as it was called in Q. Elizabeth's time) is a very large folio containing nearly fourteen hundred pages. I have ransacked it again and again, but as it has no index I cannot pretend to have discovered all that may be of interest for Abbot Gilbert's time. Faustina A. iii is unhappily no longer in its old home: it passed by some illicit process, now undiscoverable, into the Cottonian collection. Portions of it are copied from the Westminster ‘Domesday’; but parts of it are perhaps a little earlier, and certainly offer independent texts. I have, therefore, sometimes given its variants, either as being in themselves of value, or as illustrating the degree of freedom with which scribes copied charters into these large collections. For a few of the charters printed below we depend on the Liber Niger Quaternus of the fifteenth century.