In Greek Mythology, Orneus was the son of King Erechtheus and Praxithea and the father of Peteus.^[1] Through Peteus Orneus is the grandfather of Menestheus. Orneus could have been Erechtheus's oldest son, and it is uncertain why he did not inherit the throne. Ofcourse he could have died before his father. Erechtheus in Greek Mythology was the name of a king of Athens, and a secondary name for two other characters In Homers Iliad the name is applied to the earth-born son of Hephaestus later mostly called Erichthonius by later writers. ... Hylas and the Nymphs by John William Waterhouse, 1896 In Greek mythology, Praxithea (Greek ???) was a Naiad Nymph daughter of ??? and of ???. According to Apollodorus Praxithea married Erichthonius of Athens and by him had a son named Pandion I. References Apollodorus, 1921. ... Menestheus, the son of Peteus, son of Orneus, son of Erechtheus, was a legendary King of Athens during the Trojan War. ...

The town of Orneae is believed to be named after him.

References

1. ^ William Smith (1870). Dictionary of Greek and Roman Biography and Mythology, 57.