Which Comanche leader in west Texas ignored the treaty of medicine lodge creek?

The Comanche leader who ignored the Treaty of Medicine Lodge Creek was Quanah Parker. He resisted the treaty's terms, which aimed to confine the Comanche to reservations and limit their traditional way of life. Quanah Parker continued to lead his people in raiding and resisting American encroachment on their lands, ultimately becoming a prominent figure in the struggle between Native Americans and settlers in West Texas.