The only tomb identified with certainty is that of Darius the Great (Darius I, c. 522–486 BC), because of two long inscriptions in which the king proudly says of himself:

" I am Darius the great king, king of kings, king of countries containing all kinds of men, king in this great earth far and wide, son of Hystaspes, an Achaemenid, a Persian, son of a Persian, an Aryan, having Aryan lineage.

Darius the King says: This which has been done, all that by the will of Ahuramazda I did. Ahuramazda bore me aid, until I did the work. May Ahuramazda protect me from harm, and my royal house, and this land: this I pray of Ahuramazda, this may Ahuramazda give to me! "

At the time of Darius Ahuramazda was regarded as the divine creator and was symbolized by a faravar, a guardian angel holding a solar disc. The worship of Ahuramazda was not limited to Zoroastrians, but was shared by other Persian believers.