Pierantoni was Ministerial Secretary in Turin, and later a professor of constitutional law and international law at the Universities of Modena (1865), Naples (1871) and Rome (1876). He also was a member of the Italian Senate in 1883. In 1885 he represented his country at the Paris Conference on shipping in the Suez Canal.
In September, 1873, together with ten other lawyers from various countries he founded the Institut de Droit International in the Belgian city of Ghent. This was a private organization concerned with the development of international law. For his work in international law, he was nominated for the Nobel Peace Prize in 1904, but the Institut as a whole received the award for that year.
Personal life
He was married in 1868 to the poetGrazia Mancini, a daughter of the lawyer Pasquale Stanislao Mancini who was also a founder of the Institut de Droit International and its first president.
Il progresso del diritto pubblico e delle genti (The Progress of Public Law of Nations), Modena 1866; German translation, Vahlen, Berlin 1899
Il giuramento: storia, legge, politica (The oath: history, law, politics), Rome 1883
Gli avvocati di Roma antica (The Lawyers of Ancient Rome), Zanichelli, Bologna 1900
Storia degli studi del diritto internazionale in Italia (History of Studies of International Law in Italy), Florence 1902
References
Peter Macalister-Smith: Bio-Bibliographical Key to the Membership of the Institut de Droit International, 1873–2001. In: Journal of the History of International Law. 5(1)/2003. Brill Academic Publishers, S. 77–159, Шаблон:ISSN
