(Ἀλκαῖος; Alkaîos). The suggestive mythological name (alkḗ, ‘strength’) is connected with Hercules.
[1] Grandfather of Hercules
Grandfather of Hercules, son of Perseus and Andromeda, husband of Astydameia, the daughter of Pelops, father of Amphitryon and Anaxo (Hes. Sc. 26; Schol. Eur. Hec. 886). Also the form of the name Alceus appears to be…