Strabo, Seius
a Roman eques, was commander of the praetorian troops at the latter end of the reign of Augustus and the commencement of that of Tiberius. He was subsequently sent by the latter emperor to govern Egypt, and was then succeeded in the sole command of the praetorian troops by his son, the notorious Sejanus, who had shared with him the command from the first year of the reign of Tiberius. (Tac. Ann. 1.7, 24, 4.1; D. C. 57.19.) [SEJANUS.]
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.