While the war in Judea was in progress, great events were occurring in Rome. In the middle of 68, the emperor Nero's increasingly erratic behavior finally lost him all support for his position. The Roman Senate, the Praetorian Guard and several prominent army commanders conspired for his removal. When the senate declared Nero an enemy of the people, he fled Rome and committed suicide with the help of a secretary. The newly installed emperor, the former Governor of Spain Galba, was murdered after just a few months by his rival, Otho, triggering a civil war that came to be known as the Year of the Four Emperors. In 69, though previously uninvolved, the popular Vespasian was also hailed emperor by the legions under his command. He decided, upon gaining further widespread support, to leave his son Titus to finish the war in Judea, while he returned to Rome to claim the throne from the usurper Vitellius, who had already deposed Otho.