 Complete the following phrase:  In 473 BC, the tribune Gnaeus Genucius ordered the arrest and trial of Gnaeus Manlius Vulso and Lucius Furius Medullinus, the consuls of the previous year, for having used their power to obstruct agrarian reforms. Genucius was already hated by the patricians; Titus Genucius, probably his brother, having brought to trial Titus Menenius Lanatus, who as consul in 477 had failed to intervene to prevent the disaster at the 