Heliades

In Greek mythology, the Heliades (Ancient Greek: Ἡλιάδες means 'daughters of the sun') also called Phaethontides[1] (meaning "daughters of Phaethon") were the daughters of Helios and Clymene, an Oceanid nymph.According to one version recorded by Hyginus, there were seven Heliades: Merope, Helie, Aegle, Lampetia, Phoebe, Aetherie and Dioxippe.

[4] A scholiast on the Odyssey gives their names as Phaethusa (Φαέθουσα), Lampetia (Λαμπετίην) and Aegle (Αἴγλην).

He was unable to control the horses and fell to his death (according to most accounts, Zeus struck his chariot with a thunderbolt to save the Earth from being set afire).

The Heliades grieved for four months and the gods turned them into poplar trees and their tears into amber.

[7] According to Hyginus, the Heliades were turned to poplar trees because they yoked the chariot for their brother without their father Helios' permission.