The Hidden Kingdom, a great Elven realm in the forests of Beleriand during the First Age, ruled by King Thingol and Queen Melian. Protected by the Girdle of Melian, an enchantment that prevented any from entering without leave, Doriath endured longer than the other Elven realms. It fell through treachery and the curse of the Silmaril, when the Dwarves of Nogrod sacked its halls.