the sons of Zeus and Hera, but Ares (the god of war) and Hephaestus (the blacksmith god) are their two primary sons. Most traditional accounts do not specify which of them was born first. [1, 2]

The Sons of Zeus and Hera

• Ares: The god of war, frequently cited in classical lists as the firstborn son or the only son born directly from the union of both Zeus and Hera. [1, 2]
• Hephaestus: The god of metalwork and fire, whom many myths describe as being born to Hera alone through immaculate conception out of spite for Zeus. [1, 2, 3, 4]