Eumolpus

Eumolpus (the 'sweet singer'), in Greek Mythology, the son of Poseidon and Chione, was brought up in Ethiopia, whence he went to Thrace. Afterwards passing into Attica, at the head of a body of Thracians, to assist the Eleusinians in their war against Erechtheus, he and his sons were slain in battle. He was regarded as the founder of the Eleusinian mysteries. An illustrious Athenian family, the Eumolpidae, claimed descent from Eumolpus, and held the office of priests of Demeter in Eleusis.