The White Council

From Lotro-Wiki.com

The White Council was the wizard "organization" to which Saruman and Gandalf belonged. Saruman, being the wisest, was chosen as their leader. He was named Saruman the White until his betrayal. Other known members are Gandalf the Grey and Radagast the Brown. After Gandalf's death, he was resurrected as Gandalf the White, for he would be the one to replace Saruman.