In Plutarch's account, Pompey undertook a long siege of Brutus in Mutina. Brutus eventually surrendered. Plutarch wrote that it was not known whether Brutus betrayed his army or whether his army betrayed him and switched allegiance. However, a few sentences later he wrote that it was his army which switched sides. Brutus received a cavalry escort and withdrew to Regium Lepidi, a small town by the River Po, where he started to whip up further support for Lepidus. The next day Pompey sent Geminius to kill Brutus. Pompey was criticised because when the enemy surrendered he wrote to the senate that Brutus had surrendered to him of his own accord. Then he sent another letter “denouncing the man after he had been put to death.” Meanwhile Lepidus went to Rome to demand a second consulship, “terrifying the citizens with a vast throng of followers.” However, at that moment Pompey’s letter which announced that he had brought the war to an end arrived. Lepidus was expelled from Italy and went to Sardinia. He fell ill and “died of despondency, which was due, as we are told, not to the loss of his cause, but to his coming accidentally upon a writing from which he discovered that his wife was an adulteress.” The Brutus in question was Marcus Junius Brutus the Elder, the father of Marcus Junius Brutus the Younger, one of the leaders of the plot to assassinate Julius Caesar.