Agrippa in Wikipedia

Marcus Vipsanius Agrippa (c. 63 BC–12 BC) was a Roman statesman and general.[1] 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. He was the son-in-law of the Emperor Augustus, maternal grandfather of the Emperor Caligula, father-in-law of the Emperor Tiberius and the Emperor Claudius, and maternal great-grandfather of the Emperor Nero...