Relena Darlian, born Relena Peacecraft on April 7, After Colony 180, originated as the daughter of King Peacecraft and Queen Katrina of the pacifist Sanc Kingdom, destroyed by the United Earth Sphere Alliance during her infancy. Rescued by loyalist Vice Foreign Minister Darlian, she was raised as his adoptive daughter, unaware of her heritage. Her early life depicted a privileged yet isolated teenager, popular among peers but emotionally detached, until encountering the injured Gundam pilot Heero Yuy on an Earth beach. This sparked her fascination despite his initial threats to kill her for discovering his identity. Her character transformed after OZ agent Lady Une assassinated her adoptive father. On his deathbed, he revealed her Peacecraft lineage, compelling her to embrace her family's pacifist legacy. She reclaimed her birth name and returned to the liberated Sanc Kingdom, reinstated as sovereign with soldier Lucrezia Noin as protector and advisor. There, she established a pacifism school while navigating political threats from groups like the Romefeller Foundation. Relena's political influence expanded when Romefeller, seeking a puppet leader, appointed her "Queen of the World" following her surrender of the Sanc Kingdom to prevent destruction. Instead of complying, she leveraged the position to advocate globally for disarmament and diplomacy, swaying Romefeller members to marginalize leader Duke Dermail. Her ideals faced ultimate tests during conflicts like the Eve Wars, where her brother Milliardo Peacecraft (masked as OZ officer Zechs Merquise) led the colonial extremist group White Fang. Despite imprisonment aboard their battleship Libra, she rejected assassination as a solution, maintaining her commitment to nonviolence even when offered vengeance against Lady Une. In the *Endless Waltz* OVA, serving as Vice Foreign Minister for the Earth Sphere Unified Nation, Relena was abducted by Mariemaia Khushrenada's faction. During a coup attempt, she broadcast a speech urging civilians to resist nonviolently, later explaining to Mariemaia that sustainable peace required hope, not inherited hatred. She reiterated her choice to retain the Darlian surname, symbolizing her belief in earned peace over dynastic legacy. The sequel novel *Frozen Teardrop* confirmed her marriage to Heero Yuy, who proposed after years of mutual protection and unresolved tension. An epilogue showed them living peacefully on Mars, planning a family. Earlier in this narrative, antagonists forcibly subjected her to a "Perfect Peace Program" involving brainwashing nanomachines, briefly becoming their figurehead before overcoming their control. Throughout her arc, Relena exhibited exceptional deductive skills, identifying hidden motives like Mariemaia's exploitation of her influence. Trained in firearms, she demonstrated tactical acumen during crises, such as shooting at Lady Une pre-pacifist commitment. Her resilience earned respect from soldiers like the Gundam pilots, who acknowledged her "stronger" character. Key traits included unwavering idealism tempered by pragmatism, accepting limited military defense for the Sanc Kingdom yet later conceding that absolute pacifism required compromise.