The Titans
The titan's were in rule for the "Golden Age" or Fourth Age. They were ruled by Kronos. Their rule ended when Kronos' three sons, Zeus, Poseidon, and Hades, cut him up with his own Scythe and threw him into Tarturus.
Here is a list of the some(not sure if it's all of them though)
Atlas
Dione
Epimetheus
Koios
Kreios
Kronos(leader)
Hyperion
Iapetos
Menoitios
Mnemosyne
Oceanus(Nuetral in the war of the Titans')
Phoebe
Prometheus
Rhea
Tethys
Theia
Themis
Many were the children of Gaia(mother Earth) and Uranus
Here is a list of the some(not sure if it's all of them though)
Atlas
Dione
Epimetheus
Koios
Kreios
Kronos(leader)
Hyperion
Iapetos
Menoitios
Mnemosyne
Oceanus(Nuetral in the war of the Titans')
Phoebe
Prometheus
Rhea
Tethys
Theia
Themis
Many were the children of Gaia(mother Earth) and Uranus