3. P.SulpiciusRufus, probably a son or grandson of No. 2, was one of Caesar's legates in Gaul. He also served under Caesar as one of his legates in the campaign in Spain against Afranius and Petreius, in B. C. 49; and in the following year, B. C. 48, he was rewarded for his services by the praetorship. In the latter year he commanded Caesar's fleet at Vibo, when it was attacked by C. Cassius. Cicero addresses him in B. C. 45 as imperator. It appears that he was at that time in Illyricum, along with Vatinius. (Caes. Gal. 4.22, B. C. 1.74, 3.101; Cic. Fam. 13.77.)