How did Louis IX’s relationship with the clergy differ from his relationship with the nobles?

Louis IX’s relationships with the clergy and the nobility were defined by different motivations, though he maintained a firm hand in both spheres.

Relationship with the Clergy
Louis IX’s approach to the clergy was rooted in his deep personal piety and conservative values. While he was sympathetic toward the church, he remained a firm master who actively opposed attempts to expand clerical jurisdictions. His stance was pragmatic: he joined his clergy in resisting papal impositions and preferments during the 1240s, yet he later supported papal taxes on the clergy to fund his Crusades.12

Relationship with the Nobles
In contrast, the lay nobles often found Louis to be a frustrating ruler. Because he shared few of their values, he consistently sought to limit their potential for disorder. He actively curtailed their power by allowing royal officials to encroach upon baronial jurisdictions and by welcoming appeals from baronial judgments. Furthermore, he enacted legislation to curb private warfare and restricted the use of baronial currency. Despite these efforts to centralize authority, he remained respectful of rights sanctioned by provincial custom and was generally less aggressive in exploiting feudal relationships than his grandfather, Philip Augustus.12