Bala Hissar, also spelt Bala Hisar, is an historic fortress located in Peshawar, Khyber Pakhtunkhwa, Pakistan. First mentioned by 7th-century explorer Xuanzang, the fort was used as a royal residence for the Durrani Empire since 1747, when the Afghan king, Ahmad Shah Durrani, conquered Peshawar. The Marathas briefly occupied it after capturin…Bala Hissar, also spelt Bala Hisar, is an historic fortress located in Peshawar, Khyber Pakhtunkhwa, Pakistan. First mentioned by 7th-century explorer Xuanzang, the fort was used as a royal residence for the Durrani Empire since 1747, when the Afghan king, Ahmad Shah Durrani, conquered Peshawar. The Marathas briefly occupied it after capturing Peshawar in 1758 but it was soon retaken by the Afghans. The Sikhs destroyed and reconstructed the fort after capturing Peshawar in March 1823. In 1849, the British East India Company reconstructed the fort's outer walls.