Isabel de Mortimer was a notable figure in medieval England, born around 1280. She belonged to the influential Mortimer family, which played a significant role in the politics of the time. Isabel was married to Roger Mortimer, a powerful nobleman, and together they had several children, including Edmund Mortimer. Isabel's life was marked by the turbulent events of the Hundred Years' War and the conflicts between the Plantagenets and the Lancastrians. After her husband's execution in 1330, she became a widow and managed the family's estates, demonstrating her resilience and capability in a male-dominated society.