Short answers, pulled from the story.
Miran Shah was the third son of the Central Asian conqueror Timur, born in 1366. He served as governor of Khorasan at the age of fourteen and later ruled over northern Persia and Transcaucasia.
Miran Shah died during the Battle of Sardrud on the 20th of April 1408. He was struck down by a Turkoman chief who stripped and looted his body before his head was impaled before the walls of Tabriz.
Miran Shah was called the Dajjal or King of Snakes by the Hurufi Sufi sect because of his destructive behavior and the execution of their leader. His enemies viewed him as the Antichrist due to his orders to demolish ancient buildings and his chaotic lifestyle.
Miran Shah returned to his father in 1399 with a rope around his neck to beg for forgiveness. He was deposed from his lands and assigned to Timur's retinue for the next four years instead of being executed.
Miran Shah's grandson Abu Sa'id Mirza ruled the majority of Transoxiana in the latter half of the 15th century. His great-grandson Babur went on to found the Mughal Empire of India.