Citation from The Book of Iran: The History of Iranian Art, by Habibollah Ayotallahi, Translated by Shermin Haghshenas
THE ART OF THE SASANI DYNASTY PAGE – 116
A) The Characteristics and Nature of Ardeshir
Fars is one of the provinces that preserved its independent rule throughout the parthion period in spite of pledging to Parthian dynasty to act as the protector of Zoroastrianism and the Persian traditions of the Achaemenids. During the last century of the Parthian rule, this area was ruled by a prominetn figure called ''BABAK'' who considered himself a descendant of SASAN, one of the great religious and political men of Fars and the Achaemenid territory. Babak controlled the political and religious leadership of the inhabitans of Fars and chose the city Istakhr, near Persepolis as the centre of this rule. He had coins minted in his name and only followed the Pathian rules in political matters. His son Ardeshir called Artakshir in ancient Persioan, created an army and expanded his realm taking over Kerman and almost all of southern Persia. After the death of this father, as king and religious leader and having gained control of the two large provinces of Fars and Kerman, he moved the capital from Darabgird, the centre of this father's rule, to GUR in present day FIRUZABAD and built himself a large and magnifient palace. ADDAVA (Artabanus) 5th who was also Ardeshir's father-in-law reprimanded him in a letter and wrote: "You wrethched KURD, how did you dare to build such a royal residence? It was this insulting complaint that set off Ardeshir's campaign agaisnt ARDAVAN and took his place on throne. From this point onward GUR became known as ARDESHIR-KHURRA, i.e. "Glory of Ardeshir".