 Complete the following phrase:  After the fall of Constantinople and the establishment of the Latin Empire in 1204, John Doukas illegitimate son, Michael I Komnenos Doukas, founded the Despotate of Epirus, choosing the city of Arta as its capital. In 1224, Michaels half-brother Theodore captured the Kingdom of Thessalonica from the crusaders and proclaimed himself as the legitimate Byzantine emperor basileus in Thessalonica. However, Theodore was defeated and captured by John II Asen in the 