His reign was marked by abuses in provincial administration and an increasing autonomy of regional magnates who would even defy the emperor's authority. In 1201 Isaac's son, Alexius Iv Angelos, made his way to the west, where he succeeded in bringing about the diversion of the Fourth Crusade to Constantinople in order to restore his father, Isaac II, to power.
The reign of this leader was marked by inefficiencies in provincial administration and an increase in autonomy for regional nobles who would even disregard the emperor's authority. In 1201, Alexius IV Angelos traveled to the west and successfully diverted the Fourth Crusade to Constantinople with the goal of reinstating his father, Isaac II, as ruler.