Around that time, a fire burned "the palaces" or "the palace". Scholars agree that this event, described in historic sources, occurred at the ruins that have been now re-identified as Persepolis. From Stolze's investigations, it appears that at least one of these, the castle built by Xerxes I, bears traces of having been destroyed by fire. The locality described by Diodorus Siculus after Cleitarchus corresponds in important particulars with the historic Persepolis, for example, in being supported by the mountain on the east.