Lycus (brother of Nycteus)

In Greek Mythology, Lycus (Greek: Λύκος) was a ruler of the ancient city of Ancient Thebes (Boeotia). His rule was preceded by the regency of Nycteus, and he was succeeded by the twins Amphion and Zethus.

Lycus and his brother Nycteus were the sons of either Chthonius, one of the Spartoi, or of the nymph Clonia and Hyrieus, the son of Poseidon and the Atlantid Alkyone, or of Poseidon and the Pleiad Celaeno. The two brothers fled from Euboea after they murdered King Phlegyas, settling in Hyria and then moving to Thebes, because they were friends with Pentheus, its king.

Pentheus's successor was Polydorus, who married Nycteis, the daughter of Nycteus. Nycteus served as regent for Labdacus, the son of Polydorus, when Polydorus died at a young age. Nycteus's daughter, Antiope, was impregnated by Zeus, and fled to Sicyon to marry King Epopeus.

Pausanias writes that Nycteus waged war on Epopeus, but in battle was wounded, and died after being carried back to Thebes, appointing Lycus as regent for Labdacus. Nycteus urged Lycus to continue to attack Epopeus, and to retake and punish Antiope. Epopeus died of a wound just as Nycteus did, and his heir Lamedon gave Antiope up freely to avoid war.

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