Joan de Geneville was a notable figure in medieval England, born around 1286. She was the daughter of Peter de Geneville, a French nobleman, and Joan de Lacy. In 1300, she married Roger Mortimer, a prominent nobleman, which strengthened the ties between their families. Joan played a significant role in the political landscape of her time, especially during the Hundred Years' War. She was the mother of several children, including Edmund Mortimer, who became an important figure in English history. Joan's life reflects the complexities of noble alliances and the challenges faced by women in the medieval period.