The Ghaznavid dynasty was a Muslim dynasty of Turkic (Mamluk) origin that ruled the Empire of Ghazni from 977 to 1186. In 1151, Sultan Bahram Shah lost Ghazni to Sultan Ala al-Din Husain. They retook Ghazni only to lose it to the Ghuzz Turks who then lost it to Muhammed of Ghor. Guaranteed authentic by Poor Richard’s Certified Classics: ancient, medieval, and Biblical coins.