Why did Louis IX appoint royal investigators in 1247?

In 1247, Louis IX appointed royal investigators to address and correct the widespread abuse of power by local officials, such as bailiffs and seneschals, and their subordinates. These officials had frequently exploited their positions for personal profit or to the detriment of the king's interests.12

By establishing these commissions, the king provided a formal means for his subjects to voice complaints and seek redress for injustices. This initiative was part of a broader effort by Louis IX to strengthen royal justice and administration, ensuring that his representatives acted in accordance with his will. These remedial inquiries ultimately led to a significant ordinance for administrative reform in 1254, which clearly defined the duties and responsibilities of royal officials.123