Elektryon was a king in ancient Greek mythology. He was king a small fishing town in Mycenae. Mycenae was part of Ancient Greece. He was the grandfather of the demigod Hercules. Elektryon's daughter Alcmene was Hercules' human mother and the god Zeus was Hercules' father. Elektryon became very sad when he found out his daughter Alcmene had had sexual intercourse with Zeus. He told Alcmene to leave, so she went to a farming region.