Uwais Khan ibn Sher Ali also referred to as Sultan Vais Khan, was the Moghul Khan of Mughalistan; (first from 1418 to 1421 C.E. and again from 1425 to 1429 C.E.). He was the nephew of Sher Muhammad. In English, his name has been variously spelled and pronounced as either Awais, Owais or Vais. Early life After the death of his father, he was in the service of his uncle, Sher Muhammad. After a time he began to find his condition irksome, and therefore fled from the court, and took to the life of a Kazaki (robber). Many distinguished Moghul youths volunteered to follow him. Among this number was Amir Sayyid Ali Dughlat (Grandfather of Mirza Muhammad Haidar Dughlat). Amir Sayyid Ali Dughlat was the son of Sayyid Ahmad Mirza, son of Amir Khudaidad. Uwais and his band of loyalists took to plundering in and around the territory of Sher Muhammad, especially in the neighborhood of Lop Desert (Lob), Kuruktag Desert (Katak) and Sarigh Uighur region possibly present day Gansu in China. But finding little scope for activity in that country, Uwais Khan went to Turkestan. At that time Amir Shaikh Nur-ud-din, son of Sar Bugha Kipchak, one of Amir Timur's generals, was Governor of Turkestan. With him Sher Muhammad had some conflict, and since Uwais Khan was at enmity with Sher Muhammad, Amir Shaikh Nur-ud-din gave his daughter Daulat Sultan Sakanj, in marriage to Uwais Khan. He also gave Uwais Khan much assistance in his attacks on Sher Muhammad, and for a long time there was continual conflict between Uwais Khan and his uncle, the latter being as a rule, victorious. One of these encounters took place at a spot in Moghulistan called Karang Kaingligh. Finally, Uwais Khan, after a long and rapid march, surprised Sher Muhammad in his camp at midnight in one of these confrontations. The assailants were four hundred strong. When the alarm was raised, Sher Muhammad threw himself into a ditch, while Uwais Khan, surrounding the camp, searched till dawn for Sher Muhammad, slaying all whom he met. Yet, notwithstanding their search and the violence they used towards the people in the camp, no trace of Sher Muhammad was to be found. When day broke Uwais Khan left. Then Sher Muhammad came out of the ditch, and his men having again collected round him, he set out in pursuit of Uwais Khan, who managed to