A new patriarch, Theodotos, was selected, and in April a synod was convened in Hagia Sophia, at which iconoclasm was re-introduced as dogma. Theodore composed a series of letters in which he called on "all, near and far," to revolt against the decision of the synod. Not long thereafter he was exiled by imperial command to a Metopa, a fortress on the eastern shore of Lake Apollonia in Bithynia. Shortly thereafter Leo had Theodore's poems removed from the Chalke Gate and replaced by a new set of "iconoclastic" epigrams.