Decretum
Ms. canon law written and decorated in Italy, probably in Bologna, first quarter of the 13th century.
The gloss is by Bartholomae Brixiensis (Bartholomeo de Brescia); prefaced by the Introductio liber decretorum distinctus est in tres partes (fols. 1-2), which has been ascribed to Paulus de Liazariis and which was written in the 15th century; fols. 203-204 are fragments of a 13th century summa.
Decoration: 1 composite tree of Consanguinity and Affinity (fol. 177); 2 trees, one of Consanguinity (fol. 203v) and one of Affinity (fol. 204); decorative organic penwork flourishes and sprays throughout the manuscript.
M.446 is among the 25 manuscripts described by Louis Arrigoni in his Notice historique et bibliographique sur vingt-cinq manuscrits...ayant fait parti de la Bibliothq̈ue de Francois Petrarque, Milan, 1883, including M.447 and M.940; this provenance has been discarded as false by scholars, since the supposed evidence, Petrarch's engraved coat of arms on the flyleaves, was only added to the manuscripts in the 17th century.