Samdrubtse Dzong or Shigatse Dzong, Shigatse, Tibet. Samdrubtse Dzong was probably built in the 15th century. It looked like a smaller version of the Potala. It had had turret-like fortifications at the ends and a central Red Palace. It used to be the seat of the kings of Ü-Tsang and the capital of the province of Ü-Tsang or Tsang.