Sultan Jan, also known as Sultan Ahmed Khan was installed as ruler of Herat (now in Afghanistan) by the Persians, as they evacuated Herat on March 4, 1857 in accordance with the Treaty of Paris.[1]
Sultan Jan captured Farah soon after, but it was recaptured by Dost Mohammad Khan, who then went on to lay siege to Herat. During the 10-month siege Sultan Jan died, and at the conclusion of the siege Herat returned to Afghan control.[2]