Valar

The Valar are deities that rule over Middle-earth

History
The Valar were the fourteen (originally fifteen) gods who entered Arda after its creation. The fallen Valar was Melkor, who plotted to take over Middle-earth for himself with the help of his lieutenant, Sauron. However, Sauron broke away from his master and took over in taking over Middle-Earth for himself. Their powers were created by Illuvator/Eru.

They send five wizards to protect Middle-earth. However, Saruman turns from the council and plots with Sauron to take over Middle-earth.When Gandalf is killed during his battle with Durin's Bane, the Valar send him back to Middle-earth until his job is complete. Gandalf is then resurrected as Gandalf the White

Lords

 * Manwë, the Wind-King and the King of the Valar.
 * Melkor, the Lord and Creator of Dark Powers
 * Ulmo, the Sea-King and the Lord of Water.
 * Aulë, the Smith and the Lord of Earth and all that's underneath.
 * Oromë, the Huntsman, the Lord of Forests and the Great Rider.
 * Námo (Mandos), the Doomsman and the Judge of the Dead.
 * Irmo (Lórien), Lord and Master of Dreams, Visions, and Desires, and Creator of the Oloré Mallé, or Path of Dreams.
 * Tulkas, the Wrestler, the Champion of Valinor and last of the Valar to come to Arda

Ladies

 * Varda, the Star-Queen and the Queen of the Valar.
 * Yavanna, the Fruit-Giver and the Lady of Earth.
 * Nienna, the Weeper and the Lady of Mercy.
 * Estë the Gentle, Lady of Healing and Rest, and spouse of Irmo.
 * Vairë, the Weaver and spouse of Mandos.
 * Vána, the Ever-young and spouse of Orome.
 * Nessa, the Dancer and spouse of Tulkas.