The Labdacids are a family of characters from Greek mythology, primarily associated with the city of Thebes. They are descendants of Labdacus, the son of Polydorus and grandson of Cadmus, the founder of Thebes. The Labdacids are known for their tragic stories, often involving themes of fate, curses, and family conflict. One of the most famous Labdacids is Oedipus, who unknowingly killed his father and married his mother, Jocasta. This tragic tale is central to the Oedipus Rex play by Sophocles, which explores the consequences of fate and human actions. The Labdacids' stories highlight the complexities of human relationships and the inescapable nature of destiny.