PIACENTINO. - Jurist of the 12th century, born at Piacenza, one of the major exponents of the school of Bologna. There is no certain information about his date of birth. It is generally held that he completed his studies at Bologna.

P. first taught at Mantua, where he composed the work De varietate actionum, which at a later time he called Summa Mantuana. He then went to Bologna, where it seems he did not remain many years: a bitter rivalry with some colleagues of the Studium of Bologna drove him to go as an exile to France, and there he founded a school of law at Montpellier. In this city he wrote, among other works, the most considerable of his works, the Summa Codicis which, although originally conceived as an appendix to the unfinished Summa of Rogerius, presented itself instead in its definitive compilation as a complete treatise on the first nine books of the Justinian Code.

Although precise information about the dates is lacking, it is certain that after several years P. returned to Bologna, whence he subsequently moved to Piacenza, continuing, in the one and the other seat, his activity as a master. Later he returned to Montpellier, where he died on 12 February 1192, as appears from the epitaph that is read on his tomb.

Besides the De varietate actionum and the Summa Codicis (of this work the only edition is that of Mainz of 1536), P. is the author of a Summa Institutionum, of a Summa Placuit relating to the system of proof, and of the Additiones to the Regulae Iuris of Bulgarus. He then wrote various glosses on the whole Corpus Iuris, glosses that the apparatus of Accursius preserves: they bear the siglum P. and scholarly opinion is agreed in attributing them to him.

Bibliography5 works

BIBL.: C. F. Savigny, Storia del diritto romano nel medioevo, trans. Bollati, II, 4, Turin 1857, p. 130 ff.; E. Landberg, Die Glosse des Accursius, Leipzig 1883, p. 202; M. Sarti, De claris Archigrammatis Bononiensis professoribus etc., I, Bologna 1888-96, p. 77 ff.; P. Tourtoulon, Placentin, I. La vie, les oeuvres, Paris 1896, p. 63 ff.; E. Besta, Fonti: legislazione e scienza giuridica dalla caduta dell'Impero romano al secolo decimosto. I, part 2nd, Milan 1925, p. 801 f.

M. Teresa de Simone Niquesa

@incollection{ec9_piacentino, author = {De, Simone Niquesa Maria Teresa}, title = {Piacentino}, booktitle = {Enciclopedia Cattolica}, volume = {IX}, pages = {1318}, note = {Cited by column}, publisher = {Ente per l’Enciclopedia Cattolica e per il Libro Cattolico}, address = {Città del Vaticano}, year = {1952}, url = {https://azioneromana.com/article/piacentino} }

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