 Complete the following phrase:  From a series of letters by Archbishop Theophylact of Ohrid, it appears that Gregory Taronites originally held some civilian office in the Balkans, before being entrusted with a mission to the Pontus ca. 11011103. There, according to Theophylact, he triumphed against the Seljuk Turks and the Franks, the latter probably a reference to his role in ransoming Bohemond I of Antioch, who had been a captive of the Turks at Neokaisareia since his defeat in the 