Lucius Antonius Saturninus was the Roman governor of the province Germania Superior during the reign of the Emperor Domitian. In the spring of 89, motivated by a personal grudge against the Emperor, he led a rebellion known as the Revolt of Saturninus, involving the legions Legio XIV Gemina and Legio XXI Rapax, camped in Moguntiacum (Mainz).
His Germanic allies were prevented from joining him by a sudden thaw of the river Rhine, and the revolt was quickly put down by Domitian's general Trajan, who afterwards burned Saturninus' letters in an attempt to avoid implicating others. However, Domitian had numerous others executed with Saturninus, displaying their heads on the rostra at Rome. The Legio XXI was sent to Pannonia, and Domitian passed a law prohibiting two legions from sharing the same camp.