Tolkien Encyclopedia > Powers > Valar > Aratar
Of the Valar and Valier, nine were chief in power and
one, Melkor, was removed from their number, leaving eight. These eight
are called the Aratar.
They are Manwë and Varda, Ulmo, Yavanna and Aulë,
Mandos, Nienna, and Oromë.
Manwë is their King under Eru. In majesty, they are
compare of any others of the Valar, Maiar, or any other order that Eru
has sent into Eä.
"Valaquenta: Of the Valar"