2. P.RutiliusLupus, probably son of the preceding, tribune of the plebs, B. C. 56, was a very warm partisan of the aristocracy. Immediately after entering upon his office in the December of the preceding year, he proposed the repeal of the agrarian law of Caesar; and he also took an active part in the disputes relating to the restoration of Ptolemy Auletes to Egypt. (Cic. ad Qu. Fr. 2.1, ad Fam. 1.1, 2.) He was praetor in B. C. 49, and was stationed at Tarracina with three cohorts, but he was deserted by his men as soon as they saw Caesar's cavalry approaching. Instead, however, of hastening to Brundisium to join Pompey, he returned to Rome, and administered justice there for a short time, but must have quitted the city before Caesar's arrival. (Caes. Civ. 1.24 Cic. Att. 8.12, A. § 4, 9.1.2.) Shortly afterwards he crossed over to Greece, and was sent by Pompey to take the charge of Achaia. (Caes. Civ. 3.55.) He may have been the father of Rutilius Lupus, the grammarian, spoken of below.