As the oldest daughter but unable to inherit the estate, Mary’s choice of partner and subsequent provision of an heir was vital to Downton’s future. Tragically husband Mathew was killed on the day the pair became a father to George. Mary has had to fight to establish herself and is now keen to step into Tom’s shoes. Managing to stay one step ahead of scandal, she has had a colourful love life to date and no shortage of suitors but is she ready to settle down again? Or will her priorities lie elsewhere?