Leos (July 23 – August 22) take chances. They are smart, and they love very deeply. At first glance, you wouldn’t think those attributes apply to the eldest Crawley daughter, Lady Mary. She comes off as entitled, snobbish, and selfish. As the series continues, however, her tough shell cracks, and her heart is exposed. That’s when audiences get to see who Lady Mary really is, and what she can be.
It is her doomed romance with Matthew that reveals her true nature. What is initially a courtship of convenience, a way of keeping Lady Cora’s fortune in the family, turns into a marriage of true love. Following her husband’s demise, Mary turns inward. She shuns her responsibilities, even giving her own child the cold shoulder for a period of time. Eventually, she emerges from that dark time, no longer seeing her status as a widow as an impediment and accepting it as part of who she is.
From then on, she begins challenging social norms, asserting herself as the heir to Downton and a proud woman who can make her own way in life. Instead of spending the rest of her life in darkness, a fire is lit within her that would show her a path to the future — one where she can present herself however she wants and remarry for love. See? She’s a Leo.