2. Q.AeliusTubero, the son of Lucius [see above, No. 5], was born probably about B. C. 74. When he was a young man, he made a speech (B. C. 46) before C. Julius Caesar against Q. Ligarius, who was defended by Cicero in a speech which is extant (Pro Q. Ligario). When L. Tubero, who had been appointed governor of Africa by the senate, attempted to land there, Ligarius, who held Africa in the capacity of legatus, prevented Lucius from landing with his son Quintus, who accompanied him; and this was the main cause of the enmity of Tubero against Ligarius. The oration of Tubero is mentioned by Quintilian (Instit. Orat. 10.1.23, 11.1.78). After his failure on this occasion Tubero applied to the study of the Jus Civile under Ofilius; and he obtained considerable reputation. He had a great knowledge both of Jus Publicum and Privatum, and he wrote several works on both these divisions of law; but he affected an antiquated mode of expression, which made his writings less agreeable to read (Pomponius, Dig. 1. tit. 2. s. 2.46) : from this remark of Pomponius we may infer that Tubero's works were extant when he wrote. Tubero married a daughter of Servius Sulpicius, and the daughter of Tubero was the mother of the jurist C. Cassius Longinus. It is uncertain if this Tubero was consul under Augustus B. C. 11, with P. Fabius Maximus, for his consulship is not mentioned by Pomponius, but that omission is not decisive against the evidence of the Fasti Capitolini and Plinius (H. N. 8.17). A work by Tubero, " De Officio Judicis" is mentioned by Gellius (14.2); and another " Ad C. Oppium" is mentioned by Gellius (7.19). Like his father Q. Tubero wrote a history ( Liv. 4.23; Suet. Caes. 83), but whether the quotations of A. Gellius (6.3, 4) are taken from the history of the father or the son cannot be determined. Tubero the Jurist, who is often cited in the Digest, is this Tubero; but there is no excerpt from his writings.