Task: Translation
Input (Chinese): 这份手稿的工作始于1426年，由帖木儿王子Baysonghor Mirza命令，并于四年后的1430年完成。
Output (English): The work on this manuscript was started in 1426 on the orders of the Timurid Prince Baysonghor Mirza and completed four years later , in 1430 .