Тиберий Семпроний Гракх
Marcus Octavius was a name used for men among the gens Octavia. Marcus was one of the four chief praenomina used by the Octavii, the other three being Gaius, Gnaeus and Lucius. The most known member was the "tribunus plebis" in 133 BC and colleague-turned-opponent of Tiberius Gracchus.