The book is the first to analyze the influence of the legal legacy of the Great Mongol Empire on the legal development of the Turkic-Mongol states that arose after its collapse. The author identifies the main sources of “Genghis law”, traces the evolution of its main institutions - such as the right to supreme power based on belonging to the “golden family”, the procedure for election to khans, tax regulation, etc. The action of imperial legal institutions in certain states of the late Middle Ages and the New Age. The book is intended for historians, orientalists, legal historians, source scholars, as well as students studying in these specialties.