Tractatus de duobus fratribus
Subtitle: et quibuscunq[ue] sociis
By: editus per Petrum de Ubaldis
Publisher: J. Myt
Published: 1524
Place of publication: Lugduni [Lyons]
Language: lat
Subjects: Roman law
Notes: Has also been attributed to his uncle (or great-uncle) of the same name, who died 1420.--cf. Vermiglioli, Biog. scrit. Perug., v.1, p.160-163.

Imprint from colophon; device of Vincent de Portonariis on the title page.