Abbasid Empire, Ghaznavid Dynasty, Mahmud of Ghazna in the Name of Nuh ibn Mansur, Dinar 384 AH In the second half of the 10th century, a duchy emerged at the periphery of the Islamic Empire that was going to be very successful over the next two centuries. It was founded by General Alp Tigin, who set off into the mountains of modern Afghanistan with some of his followers and conquered the duchy of Ghazna. When Alp Tigin died soon thereafter he was succeeded by his son IIshaq. In 977 Sebük Tigin assumed power in Ghazna. In 994, he was summoned by his neighbor, the Samanid Emir Nuh ibn Mansur, to help crushing an internal uprising. Sebük was successful, and as a result was assigned with the title of "Nasir ud-Din" (Hero of the Faith) and the government of Khorasan. He committed the command of Khorasan to his son Mahmud (998-1030). The headquarters were in Nishapur, where Mahmud had this coin struck in the same year. It bears the name of Nuh ibn Mansur as the official supreme authority.