In Greek mythology, Iphicles (/ˈɪfɪˌkliːz/ or /ˈaɪfɪˌkliːz/; Ancient Greek: Ἰφικλῆς Iphikles) was the half maternal twin brother of Heracles, being the son of Alcmene and her human husband Amphitryon, whereas Heracles was her son by Zeus. He also had a sister, Laonome. ... He was also sometimes called Iphiclus.