As of now, not much knowledge is gained about the four hundred-year history of that state, which was once part of the Seleucid Kingdom and then of Parthian Empire, and almost all the knowledge about the political status of Pars – before the rise of Ardashir, depends on the coins which were minted by the local semi-dependent kings; based on the existent information on the Persian coins, at least one local king ruled in Persian lands slightly after the demise of Alexander III. Even if the existence of the names of kings like Dara and Ardashir on the coins of local shahs of the land does not prove that a subsidiary house of the Achaemenids still ruled in Pars, it at least shows the continuance of some of Achaemenid traditions in that land.