A copy of one of the later books, the De Salute Corporis of Gulielmus de Saliceto, was purchased by Conrad du Moulin while abbot of the Convent of S. James at Lille, a dignity which he held from 1471 to 1474. The earliest Haarlem account-book which contained Donatus fragments was for the year 1474. It is entirely a matter of opinion as to how much earlier than this any of the extant fragments can be dated.
"Fine Books"
Alfred W. Pollard
Robert Catton was succeeded as abbot by Richard Stevenage, and in the years 1536-8 three religious books were printed for him by Hertfort, who also printed an Arithmetic and two other books on his own account, making seven books in all.
"Fine Books"
Alfred W. Pollard
158, 159 Feckenham, abbot of Westminster, iv.
"History of the English People, Index"
John Richard Green