Great-Grampa Order

Two of the first original Greek gods, from what I've read.
Him and his older brother, Chaos, were brought into the universe from light and dark energies...
Both fought with each other quite a bit...
Until, due to one fatal mistake, Order had slain Chaos.
From his blood sprang the Titans... Oronos and Gaia...
Order raised the two siblings like his own until, like most of their soon to be descendants, they fell for each other.
Making his palace within the center of the Sun, he's been sleeping there ever since...