In Greek mythology, Assaracus (Ancient Greek Ἀσσάρακος) is a king of Dardania, second son of Tros and brother of Ilus and Ganymede. While Ilus founds Ilium, Assaracus keeps the older Dardanian kingship and fathers Capys, through whom the line runs to Anchises and Aeneas.
Adapted from Wikipedia, "Assaracus" · CC BY-SA 4.0
I.Genealogy
Homer's Aeneas recounts the stemma to Achilles: Tros has three sons — Ilus, Assaracus, and Ganymede. Apollodorus has Tros marry Callirrhoe daughter of Scamander and Assaracus marry Hieromneme daughter of Simoeis, by whom he fathers Capys; other sources name Clytodora as wife. A rarer Dictys strand gives Aesyetes and Cleomestra as parents; Hyginus oddly makes Ganymede Assaracus' son rather than brother.
Assaracus inherits Dardania when Ilus prefers to rule newly founded Ilium. At his death the kingship passes to Capys, then Anchises, then Aeneas — the junior branch of Tros' house, kept apart from Priam's throne yet central to Rome's Trojan ancestry.
II.Homonym note
Assaracus is a single Dardanian king in the main tradition; Capys and Anchises continue his line. Do not merge him with later Alban kings or with Trojan warriors who share related names in the cycle.