Lady Mary Talbot is a fictional character from the popular British television series Downton Abbey. She is portrayed as the eldest daughter of the Earl of Grantham and Cora Crawley, and she plays a central role in the family's story throughout the series. Lady Mary is known for her strong-willed personality, intelligence, and complex relationships, particularly with her suitors and family members. Throughout the series, Lady Mary navigates the challenges of early 20th-century British society, including issues of class, inheritance, and gender roles. Her character evolves significantly, showcasing her resilience and adaptability as she faces personal and societal changes, ultimately becoming a key figure in the family's legacy.