Atreus and Thyestes: The Golden Lamb and the Adultery

Catalogue ID: 03-heroes/113-atreus-thyestes-golden-lamb

Cycle: Heroes — Tantalid / Mycenaean succession

Version line: Apollodorean / tragic (golden lamb; Aerope’s adultery; exile)

Sources: Apollodorus, *Epitome* 2.10–12; Aeschylus, *Agamemnon* 1583–1602 (Thyestes’ speech); Euripides, *Electra* 699–746, *Orestes* 811–818 (lyric summaries); Seneca, *Thyestes* (Roman tragedy—used only as labeled comparison where needed)

Source file: /workspace/greek-myth-catalogue/03-heroes/113-atreus-thyestes-golden-lamb.md

Characters

Aerope — wife of Atreus; adulteress; steals the golden lamb for Thyestes
Atreus — Pelopid; husband of Aerope; rightful claimant via the lamb and the reversed sun
Helios — reverses course as Atreus’s confirming omen
Mycenaean people — witnesses of the lamb and the solar sign
Pelops — father whose succession the brothers contest
The Hours — senders of the golden lamb
Thyestes — brother; adulterer with Aerope; thief of the lamb; briefly king; exiled

Places

Atreus’s flocks — finding-place of the golden lamb
Mycenae — contested kingship; scene of the lamb’s display
Place of exile — Thyestes’ banishment after the sun’s reversal

Themes

Narrative

After Pelops, his sons Atreus and Thyestes contested the kingship of Mycenae (or of the Pelopid realm). Zeus—or Hermes on Zeus’s behalf—sent a golden lamb (or ram) into Atreus’s flocks as a token that the holder of the precious animal should rule. Atreus declared that whoever possessed the lamb was rightful king. Thyestes, secretly adulterous with Atreus’s wife Aerope, persuaded her to steal the lamb and give it to him. He produced it before the people and claimed the throne. Atreus agreed to a further sign: the kingdom would belong to him if the sun reversed its course. Zeus (or Helios) drove the sun backward from west to east; Atreus recovered the kingship and banished Thyestes. Aerope’s adultery and the theft of the golden token poison Mycenaean legitimacy at its root: brother against brother, wife as traitor, and a divine animal turned into a stolen ballot. The feud’s next act is the feast of revenge (114); its grandchild is Aegisthus (115), who will stand beside Clytemnestra when Agamemnon dies.