 In 1747, Peshawar was taken by Ahmad Shah Durrani, founder of the Afghan Durrani Empire.Under the reign of his son Timur Shah, the Mughal practice of using Kabul as a summer capital and Peshawar as a winter capital was reintroduced, with the practice maintained until the Sikh invasion.Peshawar's Bala Hissar Fort served as the residence of Afghan kings during their winter stay in Peshawar.