Aunt Alexandra in "To Kill a Mockingbird" is Atticus Finch's sister and the aunt of Scout and Jem Finch. She comes to live with the Finches in Maycomb to provide a "feminine influence" for Scout and to help during the difficult period of Tom Robinson's trial. Aunt Alexandra is portrayed as a strict, traditional Southern woman who values family reputation, social standing, and conservative gender roles. She disapproves of Scout's tomboyish behavior and tries to mold her into a proper lady, emphasizing the importance of family heritage and social class. Despite her initially cold and judgmental demeanor, Aunt Alexandra deeply cares for her family and shows support, especially during trying times, revealing a more complex and compassionate side as the story unfolds.