Guillaume seems to fall off the map after William’s account of their time together. Artifacts have been found which may or may not have been his creations, but little else is known of him or his fate. Presumably, he ended his life there at the center of what was then the most powerful empire on earth. Likely, he lived long enough to see it cease to be the center, as Möngke’s brother Kublai moved it in the direction of China and the vast empire broke up into khanates that were largely independent of one another and, increasingly, at war. For his part, Guillaume had succeeded in creating a grand symbol of a far-reaching empire and an impressive accessory to the khan’s courtly binging, an expression of wealth and power but also of the unhealthy habits that would continue to eat away at the Genghis dynasty.