Krios was the Titan of Stars and Constellations; and is associated with the constellation Aries. He is known as the Lord of the South.
The least individualized among the Titans, he was overthrown in the Titanomachy.
Consorting with Eurybia, daughter of Gaea, the Earth, and Pontus, the Sea, he fathered Astraeus and Pallas as well as Perses. The joining of Astraeus with Eos, the Dawn, brought forth Eosphoros, the other Stars and the Winds.
Named the Lord of the South after being part of the conspiracy against Ouranos, he was the one on the southern part of the world making sure that the sky wouldn't collapse. Krios was inexorably involved in the war against the Olympians, however, without any specific part to play. When the war was lost, Krios was banished along with the others to Tartarus.