LABEO, MARCUS ANTISTIUS

died AD 10/11 Roman jurist who was the greatest figure in imperial jurisprudence before the time of Hadrian. Labeo came of a plebeian family of Samnite origin. His father, the jurist Pacuvius Labeo, had supported the republican revolutionary Marcus Junius Brutus, one of Julius Caesar's assassins. Although the younger Labeo likewise espoused an obsolescent Roman republicanism against the imperial form of government, he attained the praetorship under Augustus and declined that emperor's offer of the consulate. Labeo is reputed to have written 400 books, including commentaries on the Law of the Twelve Tables, the praetorian edicts and pontifical law, collections of law cases (Epistulae and Responsa), and the Pithana, a collection of definitions and axiomatic legal propositions. He had a wide general culture and a special interest in dialectics and language as aids in legal exposition. His progressive outlook and bold innovations are confirmed in surviving fragments of his works and in the abundant citations and annotations of them by subsequent Roman jurists. Labeo's Libri posteriores, a systematic exposition of Roman law, was so called because it was published after his death. The esteem in which he was held is indicated by this posthumous publication, the only known instance in Roman legal history. Labeo was also a teacher and is regarded as the founder of the Proculian school of jurists, named for his follower Sempronius Proculus.