Theodore Komnenos Doukas
He also played an important role in the rivalry of the two main post-Fourth Crusade Byzantine Greek successor states, the Empire of Nicaea and Epirus. Along with John Apokaukos and George Bardanes, Chomatianos championed the Epirote cause of political and ecclesiastical independence from Nicaea (where the exiled Patriarchate of Constantinople had established itself), and in 1225 or 1227, it was he who crowned the Epirote ruler Theodore Komnenos Doukas as Byzantine Emperor in Thessalonica.