 During his operations in Isauria , Illus took Zeno 's brother , Longinus , prisoner and kept him in an Isaurian fortress . Because he thought he would have great influence over a restored Zeno , he changed sides and marched with Zeno towards Constantinople in the summer of 476 . When Basiliscus received news of this danger , he hastened to recall his ecclesiastical edicts and to conciliate the Patriarch and the people , but it was too late . 
