When Hoormuz port in the Moghestan coast became the center of commerce, many businessmen following the fall of Siraf and Kish from the business market, switched their capital to Hoormuz. Hoormuz, in turn, was itself the outcome of a liberal government in business, economy and religion. The concentration of money in Hoormuz was a beginning for economic flourish and prosperity in a way that Hoormuz became an international port after the second half of the fifth century.
The government founded by Mohammad Deramku on the beach of Moghestan, in addition to Moghstan (Roodan and Minab) included Jarun Island (Hoormuz), Shamil, Qeshm, Manūjān, Oman, Bahrain and Qatif. The present article tries to concentrate on the formation of hoormuz kings dynasty and the island’s domain in the southern coasts of Persian Gulf and Oman sea (that includes Oman and Bahrain).