1) Theban king 
In Greek mythology, Labdacus s (Λάβδακος) was the only son of Polydorus and a king of Thebes. Labdacus was a grandson of Thebes` founder, Cadmus. His mother was Nycteis, daughter of Nycteus. Polydorus died while Labdacus was a young child, leaving Nycteus as his regent, although Lycus soon replaced him in that office. When Labdacus had gr....
[Greek mythology] the ancestors of Laius, the former king of Thebes, and of Oedipus, his son.