Saint Genevieve — in French Geneviève, in Latin Genovefa — lived in Roman and post-Roman Gaul in the fifth and early sixth centuries, and is honored as the patron of Paris. Unlike many early saints her life is recorded in a relatively early biography, the Vita Sanctae Genovefae, written about eighteen years after her repose; though it carries the miraculous elements typical of late-antique hagiography, historians generally regard it as preserving real information about her life and influence.
She was born about 419–422 at Nanterre, west of Paris, to a Gallo-Roman family traditionally named Severus and Gerontia. The earliest account tells that, while she was still a child, Saint Germanus of Auxerre and Saint Lupus of Troyes passed through Nanterre on their way to Britain to combat Pelagianism, and that Germanus, recognizing her devotion, encouraged her to dedicate her life to God. Rather than enter a monastery — still uncommon in northern Gaul — she joined a community of consecrated virgins, women who lived in prayer, fasting, and charity while remaining within society.
She became known throughout the region for ascetic discipline, charitable works, and leadership, spending much of her life in and around Paris as it emerged as a center of Frankish power. Her most famous association is with the invasion of Gaul by Attila the Hun in 451: when fear spread through the city she urged the people not to flee but to trust in God, and Attila's forces ultimately bypassed Paris. Historians caution that the link between her counsel and Attila's movements cannot be established, but the tradition became central to her reputation as protector of the city. She is also remembered for organizing relief during famine, securing grain for Paris by expeditions along the Seine.
Under the rising Merovingian Franks she came to know the royal house, including King Clovis I and Queen Clotilde, supported the building of churches, and helped strengthen Christian life in the region. She reposed about 502 or 512 — the sources differ — and was buried in Paris, where her tomb quickly became a major place of pilgrimage. Her sainthood arose, as was usual before formal canonization, through local veneration and the Church's recognition in the centuries after her death; within Orthodoxy she is among the most prominent pre-schism women saints of the West.