Who was involved in a conflict in which a secular king challenged and humiliated the papacy?

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This conflict is known as the "Babylonian Captivity of the Papacy" and took place between Philip IV of France and Pope Boniface VIII in the late 13th and early 14th centuries. Philip challenged the pope's authority and attempted to control the church within his kingdom, resulting in the pope's humiliation and eventual capture by French forces.

Who Was Involved in a Conflict in Which a Secular