Contents MS 139 contains an abbreviated version of a work on canon law by the mid-12th century canon lawer and teacher, Gratian. Gratian's original work, a text that organised and compiled various sources and teachings on canonical law, was completed in a second version in the 1150s, a decade after the work first appeared. Due to its practical use for teaching on canon law, this second version of Gratian's work became widely copied and read in the medieval period, and is known as the 'Decretum...

Contents MS 141/ff. 117r-120r contains an abbreviation of the text of Church law, compiled and written in the 12th century by a canon lawyer known as Gratian. This work came to be used as a legal textbook throughout medieval European universities, and inspired many related commentaries, abbreviations and notes. The version on f. 117r of MS 141 begins with the words Liber decretorum est distinctus in tres partes, and ends 3 folios later on f. 120r with ...