was a son of C. Piso, who perished immediately after his adoption to the empire by Galba, in A. n. 69. Galerianus was too young to take part in the contest between Otho, Vitellius, and Vespasian.
But his noble birth, his youth, and popularity, awakened the jealousy of Vespasian's prefect, Mucianus. Galerianus was arrested at Rome, conducted by a strong guard forty miles along the Appian road, and put to death by injecting poison into his veins. (Tac. Hist. 4.11