Who is the son of Earth in Greek mythology?

In Greek mythology, the "Son of Earth" typically refers to the hero, Heracles (Hercules). He is often considered the offspring of Zeus and Alcmene, but the term can also allude to the primordial deity, Gaia, who is the personification of Earth. Additionally, the term can refer to various figures associated with Earth or nature, emphasizing the connection between heroes and their earthly origins.