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