21. Plutarch, Pompey, XIV.3. Sulla, d. 78 B.C., was Roman dictator; Pompey, d. 48 B.C., a great Roman general.

22. See Plutarch, Caesar, LXIV.1–4 (and Shakespeare, Julius Caesar, II.2.99).

23. i.e. Decimus Brutus (Philippics, XIII.11).

24. Dio, Roman History, LIV.6. Agrippa and Maecenas were Roman statesmen.

25. Out of regard for our friendship, I have not concealed these things (Tacitus, Annals, IV.40). Tiberius was Roman emperor, 14–37; Sejanus was commander of the Praetorian Guard until his execution in 31.

26. See Tacitus, Annals, IV.74.

27. Dio, Roman History, LXXVI.15. Septimius Severus was Roman emperor, 193–211; Plautianus (spelt Plantianus in the 1625 edition) was commander of the Praetorian Guard until he was executed in 204.

28. Trajan, d. 117, and Marcus Aurelius, d. 180, were Roman emperors.