The Adaes (Atais, Atayos) were a Caddoan tribe inhabiting the Red River area north of the site of present Natchitoches, Louisiana. In 1699 Pierre le Moyne d'Iberville called them Natao. San Miguel de Linares de los Adaes Mission was established for them in 1716, destroyed in 1719, and restored in 1721. The Adaes were also found at San Francisco de los Tejas Mission. John R. Swanton said the Adaes spoke a divergent dialect and seemed to have had a more primitive culture than the other Caddoan tribes of the area.