In Greek mythology, Licymnius (/lɪˈsɪmniəs/; ‹See Tfd›Greek: Λικύμνιος) was a good friend of Heracles and an illegitimate son of Electryon, King of Tiryns and Mycenae in the Argolid (which makes him half-brother of Alcmene, mother of Heracles). His mother is given as Mideia, a Phrygian woman.[1][2] One source mentions Alco (Ἀλκώ) as his sister.[3] Licymnios appears in the Iliad (II, 661-663) as an old uncle of Heracles (without other details than that of being a "spawn of Ares - which can be understood figuratively as "warrior")