Marcus Vipsanius Agrippa

Marcus Vipsanius Agrippa (c. 63 BC–12 BC) was a Roman statesman and general. He was a close friend, son-in-law and minister to Octavian, the future emperor Caesar Augustus. He was responsible for most of Octavian’s military triumphs, most notably winning the naval Battle of Actium against the forces of Mark Antony and Cleopatra.

Agrippa in Gunpowder Empire
In one alternate visited by Crosstime Traffic, Agrippa lived much longer than in the home timeline, eventually conquering Germany at the behest of Emperor Augustus. When Augustus died in AD 14, Agrippa became the second emperor of Rome, and, despite his age, reigned for twelve years. In that time, he built a stable empire that stood well into the 21st century. For that reason, most Crosstimers referred to the alternate as "Agrippan Rome".

Agrippa was succeeded by his son, Lucius.