Constantius was sympathetic to the Arians, and when he could not persuade Liberius to his point of view sent the pope to a prison in Beroea. At the end of an exile of more than two years in Thrace, after which it seems he may have temporarily relented, or been set up to appear to have relented – partially evidenced by three letters, quite possibly forgeries, ascribed to Liberius, the emperor recalled him under extreme pressure from the Roman population who refused to recognize his puppet, Felix II. As the Roman See was "officially" occupied by Felix, a year passed before Liberius was sent to Rome. It was the emperor's intention that Liberius should govern the Church jointly with Felix, but on the arrival of Liberius, Felix was expelled by the Roman people. Neither Liberius nor Felix took part in the Council of Rimini (359).