After Calenardhon was given to the Éothéod by Cirion, Steward of Gondor, and became Rohan, Isengard remained part of Gondor, and the company of Aglarond removed to the northern fortress, although the rest of Gondor almost forgot about it. The small guard intermarried much with the Dunlendings, until the place became a Dunlending fortress in all but name. Orthanc however remained closed, as the Steward of Gondor still held the keys. Isengard soon came all but deserted.