A manuscript containing a collection of works on canon law by Zenzelinus de Cassanis. According to Dolezalek, the work was written in Italy some time after 1328 and probably illuminated in either France or England. The manuscript is written in Littera Bononiensis in double columns of 70 lines each.

The contents of the manuscript are as follows:

Later insertions of a 15th century example of the 'Arbor Actionum' of Johannes Bassianus, probably written in the hand of Johannes Derdinger. Folios iv-iir.

An index to the works, in the hand of Johannes Derdinger. Folio iiv.

Zenzelinus de Cassanis, Lectura Clementinarum. Folios 1r-64v.

Zenzelinus de Cassanis, Lectura Libri Sexti Decretalium. Folios 65r-135v.

Folio 136 is blank, recto and verso.

Zenzelinus de Cassanis, Lectura Decretalium X.4. Folios 137r-146v.

Notes on the life and works of Zenzelinus de Cassanis. Folio iiir.

Notarial instrument witnessed by Christianus Sibens de Turnhout, clericus Cameracensis (?Cambrai), in 1447. Folio iiiv.

There are two large illuminated initials in the volume on folios 1r and 65r. These initials are blue relieved with white tracery, on grounds of burnished gold with prolonged ends of buds, volutes, or sprays of ivy.

Throughout the rest of the work there are many smaller floriated, anthropomorphic, and zoomorphic illuminated initials with tailwork into the margins. These illuminated initials are either blue or lake relieved by white tracery. The ordinary initials throughout are blue and red, and have extended pen flourishes into the margins. Paraphs are given in blue and red alternately. On folios 65r-146v a rubric occupies the centre of the head of each folio recto and verso: on each verso, the capital 'L', for 'Liber', in red; on each recto, the Roman numeral for the particular book. The numerals for books 'I' and 'V' are in blue. The pen strokes forming the numerals for books 'II' to 'III' are alternately red and blue.

Some marginal annotations are present, mostly scribal, although some also appear to be in the hand of Johannes Derdinger and refer to his index at the beginning of the volume. Also present throughout are maniculae.

Each folio, recto and verso, has been lined and ruled in red. Pricking is very occasionally evident on the edges, but this is infrequent. There are a small number of contemporary repairs to the vellum.

A 15th-century foliation in Arabic numerals, probably in the hand of Johannes Derdinger, runs from folio 1r to 135r. From folio 136r onwards the foliation is continued in pencil by a modern hand.

Horizontal catchwords are visible on the following folios: 12v, 20v, 30v, 50v, 62v, 74v, 84v, 94v, 104v, 114v, 124v, and 134v. A vertical catchword is on folio 40v.

Quire signatures are present in the lower margins of the following folios in the form of scores, letters and Roman numerals: 31r-35r, 51r-56r, 66r-70r, 75r-80r, 85r-90r, 95r-100r, 105r-109r, 115r-120r, 125r-130r, 135r, 137r-142r.