Flaccus, Marcus Valerius (died 121 BC)

Roman democrat. As consul 125 BC he unsuccessfully proposed that Roman citizenship should be granted to all the allies in Italy. Flaccus was a supporter of the reformers Tiberius and Gaius Gracchus and, following the death of Tiberius Gracchus 133 BC, was one of the commissioners appointed to carry out his agrarian law. Flaccus was killed together with Gaius Gracchus in the course of a riot.