Historia Reiss, born into secrecy as Krista Lenz, navigates a life defined by fractured identity, dynastic betrayal, and rebirth through self-assertion. Concealed as the illegitimate daughter of Rod Reiss, head of the disgraced royal family, she endured a cloistered upbringing on a remote estate. Shunned by her mother Alma, who openly regretted her existence, Historia found fleeting solace in covert visits from half-sister Frieda. These stolen moments—literacy lessons and whispered exhortations to embrace kindness—were erased by the Founding Titan’s power, leaving fractured memories that molded her subconscious ideals. Following Wall Maria’s collapse and her mother’s assassination by Kenny Ackermann’s squad, Rod forced Historia to adopt the alias "Krista Lenz," severing her royal ties. Enlisting in the 104th Cadet Corps, she crafted a persona of calculated selflessness, chasing heroic death to atone for her perceived sin of existing. Her facade cracked during training when comrade Ymir confronted her death-seeking valor—whether recklessly rescuing a soldier in lethal blizzards or craving posthumous redemption. Ymir’s critiques exposed the self-loathing beneath her saintly mask, sparking Historia’s first doubts about trading life for others’ approval. After Ymir departed with Reiner and Bertholdt, Historia retreated into emotional detachment until the coup against the false monarchy. Defying Rod’s scheme to transform her into a Titan, she leveraged her combat training to kill him, severing familial chains. Crowned queen, she seized corrupt nobles’ lands to establish orphanages and liberated oppressed communities, balancing pragmatic governance with compassionate outreach. Her rule broke from the Reiss lineage’s subservience to the Founding Titan, asserting independence. Eren Jaeger’s challenge to define herself beyond others’ expectations hardened her resolve during the coup, driving her to shield him from her father’s machinations. Later, her strategically timed pregnancy disrupted efforts to weaponize her royal blood. Historia’s evolution from a guilt-ridden pawn seeking validation in death to a sovereign crafting her legacy mirrors her world’s upheaval—a testament to self-determination’s power amid relentless cycles of violence and inherited burdens.