Erechtheus (/ɪˈrɛkθjuːs, -θiəs/; Ancient Greek: Ἐρεχθεύς) in Greek mythology was a king of Athens, the founder of the polis and, in his role as god, attached to Poseidon, as "Poseidon Erechtheus". The name Erichthonius is carried by a son of Erechtheus, but Plutarch conflated the two names in the myth of the begetting of Erechtheus.[1]