The Çaç (Tashkent) region, located on the right bank of the Syr Darya river and geographically in the middle basin of the mentioned river, was first dominated by the Ephthalites (Ak-Huns – 420-565) and later by the Köktürk Khanate (552-744) in the Early Middle Ages in Fergana, Ustruşana, Sogd. (Samarkand, Panç, Keş, Nahşep and d.), was one of the oasis reigns between Amuderya and Syr Darya, such as Bukhara, Khorezm and Toharistan. In particular, it has found its expression in the written sources and archaeological finds in various languages of the historical period associated with the Köktürk Khaganate of the aforementioned reigns. As a matter of fact, as it is understood from the Chinese, Byzantine, Sogdian, Arabic and Persian sources and numismatic information belonging to the early middle ages, most of the statelets between Amuderya and Syr Darya were ruled by local dynasties of Kokturk origin, and some of them by their own old local dynasties. For example, native dynasties ruled in Ustrusana, Bukhara, Khwarezm, and dynasties based on the Ashina dynasty in Çach, Fergana and Toharistan. In Sogd, which is composed of many small statesmen, local dynasties were found in some parts and Kokturk origins in other parts.