Complex sentence: One region was consolidated under a confederation called the Shyris, which exercised organized trading and bartering between the different regions and whose political and military power was under the rule of the Duchicela blood line.
Split into simpler sentences: One region was consolidated under a confederation called the Shyris, which exercised organized trading and bartering between the different regions. Its political and military power was under the rule of the Duchicela blood line.