Dūst Muḥammad Khān (first r. 1241–1255/1826–1839; second r. 1259–1279/1842–1863) was the emir of Ghazna, Kabul and their environs during his first period of rule, and during his second his emirate eventually extended his authority over all Afghanistan. He was the first of the Bārakzay/Muḥammadzay line of Durrānī emirs, which …