The death of Joseph Tarchaneiotes, doux of Antioch, was followed by troubles in the city, while Philaretos Brachamios had risen in revolt at the same time. Katakalon, the son of Tarchaneiotes, was unable to check the situation. Philaretos fortified the passes in a mountainous area, making it impregnable and assembled many Armenian and other soldiers into a strong army. The emperor was unable to subdue him: in fact Philaretos subjugated many imperial cities and enlarged his dominions