The fragment we are editing here for the first time is a specimen of a new genre of Old Uygur literature. It is a memorandum or an account on the early years of the West Uygur Kingdom of Qočo. The leaf is the 22nd of an ötüg that contains a vivid text changing between prose and verse reflecting the literary heritage of the Old Uygurs. Supposing that the work was written during the Yuan period (13th to 14th centuries) we have to admit that it is an ambitious work of historical retelling political, military, and cultural events that took place at least two centuries before. Since the 62 lines are completely preserved, this text presents a new valuable source for further studies on Old Uygur.