Tier Harribel (ティア・ハリベル, Tia Hariberu; Viz "Tier Halibel") is an Arrancar and the former Tres (3rd) Espada in Sousuke Aizen's army until Aizen's defeat by Ichigo Kurosaki, representing the form of death of Sacrifice (犠牲, Gisei). After Aizen's fall, she assumed control of Hueco Mundo, becoming its de facto ruler. However, she was later defeated by Yhwach and imprisoned in Silbern, leaving Hueco Mundo to be overtaken by the Wandenreich.