In the reign of Edward I. a part of the Royal library was kept in the Treasury of the Exchequer, and a few of the books are mentioned in the Wardrobe Accounts of the year 1302.  These included Latin service books, treatises on devotional subjects, and romances.  One book is described as “Textus, in a case of leather on which magnates are wont to be sworn.”

All through the thirteenth and fourteenth centuries there are occasional allusions to the king’s books in the Wardrobe Accounts, and the Exchequer Inventory of Edward ii. enumerates “a book bound in red leather, De regimine Regum; a small book on the rule of the Knights Templars, De regula Templariorum; a stitched book, De Vita sancti Patricii; and a stitched book in a tongue unknown to the English which begins thus:  Edmygaw dorit doyrmyd dinas,” and other books and rolls “very foreign to the English tongue,” the scribe, not knowing Welsh even by sight, whereas, although he might not be able to read them, he would probably know the look of Greek or Hebrew manuscripts.  The list closes with the Chronicle of Roderick de Ximenez, Archbishop of Toledo, “bound in green leather."*

* Stapleton’s exchequer Inventory, Edward ii.

A document, belonging to the year 1419, and printed by Sir Francis Palgrave, relates to the delivery into the King’s Treasury of five volumes, consisting of a Bible, a copy of the Book of Chronicles, a treatise, De conceptione Beatae Mariae, a compendium of theology, and a volume entitled Libellus de emendatione vitae.  But in the following year these manuscripts were given to the monastery at Sheen.  In 1426 a book described as Egesippus, another as Liber de observantia Papa, were borrowed from the library in the Treasury by Cardinal Beaufort, and there are subsequent notices of the return and re-loan of the same volumes to the same borrower.  It is interesting to note that a manuscript called Hegesippus De Bello Judaico, etc., still in the Royal library, is ascribed by Casley to the eleventh century, and may be identified with the former of these two books.

In the following years entries occur of works on Civil Law, and of some others being lent to the Master of King’s College, Cambridge, and of their subsequent presentation to that house, with the assent of the Lords of the Council.

In the Wardrobe accounts of Edward iv. (Royal Ms. 14, C 8), there are entries relating to “the coveryng and garnyshing of the bookes of oure saide Souverain Lorde the Kinge,” which mark his possession in 1480 of certain choice MSS., and the same document shows that these were bound by Piers Bauduyn for the king.  Among them were a Froissart, the binding, gilding, and dressing of which cost 20S., and a Biblia Historians (now marked 19 D 2 in the Royal library), bound and ornamented for the same sum.  On a fly-leaf is an inscription recording its purchase for 100 marks by William de Montacute, Earl of Salisbury, after the battle of Poitiers.  It had been taken as loot among the baggage of the French king.  On his death in 1397, the Earl of Salisbury bequeathed it to his wife, who, in her will, ordered that it should be sold for forty livres.