DARDANUS, in Greek legend, son of Zeus and the Pleiad Electra, mythical founder of Dardanus on the Hellespont and ancestor of the Dardans of the Troad and, through Aeneas, of the Romans. His original home was supposed to have been Arcadia. Having slain his brother Iasius or Iasion (according to some legends, Iasius was struck by lightning), Dardanus fled across the sea. He first stopped at Samothrace, and, when the island was visited by a flood, crossed over to the Troad. Being hospitably received by Teucer, he married his daughter Batea and became the founder of the royal house of Troy.
See articles in Pauly-Wissowa's Realencyklopiidie and Roscher's Lexikon der Mythologie.