a Roman knight, who taught eloquence at Rome in the time of Augustus, and was the instructor of the philosopher and rhetorician, Fabianus. (Senec. Controv. ii. prooem. p. 136, ed. Bip.) He is frequently introduced as a speaker in the Suasoriae (2, 5) and Controversiae (1.1, 2, 4, &c.) of the elder Seneca. He was probably the father or grandfather of the Rubellius Blandus mentioned below.