In Greek mythology, Deucalion (Ancient Greek Δευκαλίων) son of Minos was a king of Crete, brother of Ariadne, Phaedra, and Catreus, and father of Idomeneus, who led the Cretans to Troy. Tradition also places him among the Argonauts and Calydonian hunters; Plutarch preserves a tale in which Theseus slays him at the gate of the Labyrinth.
Adapted from Wikipedia, "Deucalion (son of Minos)" · CC BY-SA 4.0
I.Family
Deucalion was a son of Minos — by Pasiphaë or by Crete in variant lists — and thus grandson of Zeus. His siblings include Acacallis, Ariadne, Androgeus, Xenodice, Phaedra, Glaucus, and Catreus. By Cleopatra he fathered Idomeneus, who succeeded him and commanded the Cretan contingent at Troy; he is also named father of a daughter Crete and of an illegitimate son Molus. Diodorus instead makes Deucalion and Molus brothers, with their sons Idomeneus and Meriones leading ninety ships against Ilium.
II.Theseus and Odysseus
Plutarch (Life of Theseus) relates that when Deucalion demanded the Athenians surrender Daedalus and threatened the hostages Minos had taken, Theseus refused, joined battle at the gate of the Labyrinth, and slew Deucalion with his bodyguard. Another notice has Deucalion, as ruler of Crete, ally with Athens and give his sister Phaedra in marriage to Theseus.
In the Odyssey, Odysseus in disguise tells Penelope he is Aethon, second son of Deucalion and brother of Idomeneus — a claim that may invent a son left as regent, or reuse a real name for the beggar's fiction.
III.Homonyms
This atlas entry (deucalion-crete) is Minos' Cretan son, father of Idomeneus. Distinct from the flood-hero Deucalion son of Prometheus (deucalion); from Deucalion of Pellene / Pella numbered among the Argonauts in some lists (deucalion-pella); and from a Trojan warrior of that name (deucalion-trojan).