In Greek mythology, Pieris was one of the names given for the slave who was the mother, by Menelaus, of Megapenthes.
[1] Homer's Odyssey, and the geographer Pausanias, mention that Megapenthes was the illegitimate son of Menelaus, king of Mycenaean Sparta, by a slave, without naming her.
[2] But according to the mythographer Apollodorus: Other sources give other names for the slave who bore Megapenthes.
[4]