- Prayerbook : Dominican use : in Latin with German additions].1
- Prayerbook : in Latin with German rubrics].1
- Prefacio in itinerar[iu]m, seu, Peregrinat[i]o[ne]m B[ea]te Virginis [et] Dei genetricis Marie.1
- Priest's book (Lections, Epistles, sermons) : in Latin].1
- Profession ritual and Benedictine rule for nuns : in Latin and Flemish].1
- Prognostication manual : in Latin, English, and Anglo-Norman].1
- Propositio adu[er]sus quosdam curiosos detractores eccle[siae] : quia possidet [et] sup[er] statu eius f[ac]ta coram sa[n]ctissimo [et] beatissimo Romano pontifice d[omi]no nicolao quinto uiro devotissimo.1
- Psalter : in Latin].1
- Psalter : use of Sarum : in Latin].1
- Psalter : with canticles and Litany : in Latin with some rubrics in French].1
- Psalter and breviary : Dominican use : in Latin].1
- Psalter with calendar, canticles and litany : in Latin].1
- Psalter, canticles, and litany : in Latin].1
- Regla de la orden serafica de san francisco].1
- Regula et catalogus fratrum et sororum congregationis S. Bernardini Senensis : in Latin and Italian].1
- Rerum vulgarium fragmenta, etc. : in Italian with some Latin].1
- Rerum vulgarium fragmenta, etc. : in Italian].1
- Responsorium : in Latin with German additions].1
- Romuleon].1
- Rosarium psalter : in Spanish].1