He captured Constantinople after a six months' siege and deposed Anastasius, but in the following year was himself forced to resign by a new usurper, Leo III. Theodosius ended his life in a monastery.
He captured Constantinople after a six months' siege and deposed Anastasius, but immediately faced rebellions in Anatolia and an invasion by an Arab fleet. The following year was himself forced to resign by a new usurper, Leo III. Theodosius ended his life in a monastery.