In Greek mythology, Dicaeus or Dikaios (Ancient Greek: Δίκαιος) was a son of Poseidon[1] and brother was Syleus.[2] They lived near the Mountain Pelion in Thessaly.[2]
Dicaeus hosted Herakles.[2] Unlike Syleus, who was killed by Herakles, Dicaeus was a just man, which was suggested by the very literal meaning of his name (Δίκαιος = Just).[2]