Information: - In Greek mythology, Perseus, the legendary founder of Mycenae and of the Perseid dynasty of Danaans, was, alongside Cadmus and Bellerophon, the greatest Greek hero and slayer of monsters before the days of Heracles. Perseus beheaded the Gorgon Medusa and saved Andromeda from the sea monster Cetus. Perseus was the son of the mortal Danae and the god Zeus. He was also the half-brother and great grandfather of Heracles. - Zeus ("Zeus", ; Modern , "Dias" ) was the sky and thunder god in ancient Greek religion, who ruled as king of the gods of Mount Olympus. His name is cognate with the first element of his Roman equivalent Jupiter. His mythologies and powers are similar, though not identical to those of the Indo-European deities such as Indra, Jupiter, Perun, Thor, and Odin. - Chthonic (from Greek "khthonios" , "in, under, or beneath the earth", from "khthn" "earth") literally means "subterranean". The translation of meaning discusses deities or spirits of the underworld, especially in Greek religion. The Greek word "khthon" is one of several for "earth"; it typically refers to the interior of the soil, rather than the living surface of the land (as "Gaia" or "Ge" does), or the land as territory (as "khora" () does). - In Greek mythology, Alcmene or Alcmena (or [Doric]) was the wife of Amphitryon by whom she bore two children, Iphicles and Laonome. She is, however, better known as the mother of Heracles whose father was the god Zeus. - Amphitryon ("gen".: ; usually interpreted as "harassing either side"), in Greek mythology, was a son of Alcaeus, king of Tiryns in Argolis. - In Greek mythology, the Heracleidae or Heraclids were the numerous descendants of Heracles (Hercules), especially applied in a narrower sense to the descendants of Hyllus, the eldest of his four sons by Deianira (Hyllus was also sometimes thought of as Heracles' son by Melite) Other Heracleidae included Macaria, Lamos, Manto, Bianor, Tlepolemus, and Telephus. These Heraclids were a group of Dorian kings who conquered the Peloponnesian kingdoms of Mycenae, Sparta and Argos; according to the literary tradition in Greek mythology, they claimed a right to rule through their ancestor. Since Karl Otfried Muller's "Die Dorier" (1830, English translation 1839), I. ch. 3, their rise to dominance has been associated with a "Dorian invasion". - Hercules is the Roman adaptation of the Greek divine hero Heracles, who was the son of Zeus (Roman equivalent Jupiter) and the mortal Alcmene. In classical mythology, Hercules is famous for his strength and for his numerous far-ranging adventures. - Greek mythology is the body of myths and teachings that belong to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. It was a part of the religion in ancient Greece. Modern scholars refer to and study the myths in an attempt to shed light on the religious and political institutions of Ancient Greece and its civilization, and to gain understanding of the nature of myth-making itself. - Echembrotus ( Greek : ) was an ancient Arcadian Greek lyricist and poet . According to Pausanias , Echembrotus offered a bronze tripod to Heracles when the latter won at the Amphictyonic Games . - Heracles ( "Hrakls", from "Hra", "Hera"), born Alcaeus ("Alkaios") or Alcides ("Alkeids"), was a divine hero in Greek mythology, the son of Zeus and Alcmene, foster son of Amphitryon and great-grandson and half-brother (as they are both sired by the god Zeus) of Perseus. He was the greatest of the Greek heroes, a paragon of masculinity, the ancestor of royal clans who claimed to be Heracleidae and a champion of the Olympian order against chthonic monsters. In Rome and the modern West, he is known as Hercules, with whom the later Roman emperors, in particular Commodus and Maximian, often identified themselves. The Romans adopted the Greek version of his life and works essentially unchanged, but added anecdotal detail of their own, some of it linking the hero with the geography of the Central Mediterranean. Details of his cult were adapted to Rome as well. - Hera (, Greek , "Hr", equivalently , "Hr", in Ionic and Homer) is the goddess of women and marriage in Greek mythology and religion. She is the daughter of the Titans Cronus and Rhea. Hera is married to her brother Zeus and is titled as the Queen of Heaven. Some of her characteristics include her jealous and vengeful nature against Zeus's other lovers and offspring and against the mortals who cross her. What is the relationship between 'echembrotus' and 'greeks'?
A:
ethnic group