The Bebryces were a tribe of people who lived in Bithynia

Bithynia

Bithynia was an ancient region, kingdom and Roman province in the northwest of Asia Minor, adjoining the Propontis, the Thracian Bosporus and the Euxine .-Description:...

. According to Strabo they were one of the many Thracian tribes that had crossed from Europe into Asia.

According to legend they were defeated by Heracles

Heracles

Heracles ,born Alcaeus or Alcides , was a divine hero in Greek mythology, the son of Zeus and Alcmene, foster son of Amphitryon and great-grandson of Perseus...

 or the Dioscuri, who killed their king, Mygdon

Mygdon of Bebryces

King Mygdon of the Bebryces was killed by Heracles on the way to Pontus to complete his ninth labour, which was to fetch the belt of Queen Hippolyte of the Amazons. After Heracles killed Mygdon, he gave his former lands to Lycus, who renamed the place Heraclea in honour of Heracles...

 or Amycus

Amycus

In Greek mythology, Amycus was the son of Poseidon and Melia. He was a boxer and King of the Bebryces, a mythical people in Bithynia. Polydeuces beat him in a boxing match when the Argonauts passed through Bithynia. He was also a prominent Trojan during the Trojan War. He married Theona and had...

. Their land was then given to King Lycus

Lycus

Lycus or Lykos , a common name for Greek rivers, seems to have originated in the impression made upon the mind of the beholder by a torrent rushing down the side of a hill, which suggested the idea of a wolf rushing at its prey.Lycus or Lykos may refer to:* Lycus , several people in Greek...

 of the Mariandynians, who built the city Heraclea

Heraclea Pontica

Heraclea Pontica , an ancient city on the coast of Bithynia in Asia Minor, at the mouth of the river Lycus. It was founded by the Greek city-state of Megara c.560-558 and was named after Heracles who the Greeks believed entered the underworld at a cave on the adjoining Archerusian promontory .The...

 there. Some say Amycus was a brother of Mygdon and another Bebrycian king; both were sons of Poseidon

Poseidon

Poseidon was the god of the sea, and, as "Earth-Shaker," of the earthquakes in Greek mythology. The name of the sea-god Nethuns in Etruscan was adopted in Latin for Neptune in Roman mythology: both were sea gods analogous to Poseidon...

 and Melia

Melia

-People:* Melia Watras , a prominent American violist* Elie Melia , a Georgian Orthodox priest and church historian* Fulvio Melia , an Italian-American physicist* Jimmy Melia , a former English footballer...

. Greek mythology offers two different accounts for the origin of the name 'Bebryces': either from a woman named Bebryce (Eustath. ad Dionys. Perieg. 805.), or from a hero named Bebryx (or Bebrycus) (Steph. Byz. s.v. Bebrycus). Bebryce is possibly the same as Bryce, a daughter of Danaus

Danaus

In Greek mythology Danaus, or Danaos , was the twin brother of Aegyptus and son of Achiroe and Belus, a mythical king of Egypt. The myth of Danaus is a foundation legend of Argos, one of the foremost Mycenaean cities of the Peloponnesus...

, a mythical King of Libya

Ancient Libya

The Latin name Libya referred to the region west of the Nile Valley, generally corresponding to modern Northwest Africa. Climate changes affected the locations of the settlements....

 and Arabia (Apollodorus). Bebryx was also the father of Pyrene

Pyrene (mythology)

In Greek mythology, Pyrene may refer to:* Pyrene, daughter of King Bebrycius and a lover of Hercules. She bore a serpent and became so terrified that she fled to the woods where she died. Hercules created a tomb for her by piling up rocks thus forming the mountain range of the Pyrenees, named...

.