Dunhuang is a city (pop. 187,578) in Jiuquan, Gansu province, China. It was a major stop on the ancient Silk Road. It was also known at times as Shachou, or 'City of Sands'. It is situated in an rich oasis containing Crescent Lake and Mingsha Shan, "Echoing-Sand Mountain". Mingsha Shan is so named for the sound of the wind whipping off the dunes, the singing sand phenomenon.
Nicholas II Zorzi or Giorgi was the Margrave of Bodonitsa, a member of the Zorzi family of the Republic of Venice, from 1410 to 1414. He was the last Venetian margrave to actually rule before the Ottoman Turkish conquest. He was the son of either Francis or Jacob, brothers and successive margraves of Bodonitsa. He succeeded the latter on his death. He was a prisoner at the sourt of the Sultan Mehmet I in Adrianople, but was released in accordance with a treaty with Venice.