Following the death of Genghis Khan in 1227, his empire was divided among his four sons and his family members. Despite the potential for serious fragmentation, the Mongol law of the Mongol Empire maintained orderly succession for several more generations, and control of most of Transoxiana stayed in the hands of the direct descendants of Chagatai Khan, the second son of Genghis Khan. Orderly succession, prosperity, and internal peace prevailed in the Chaghatai lands, and the Mongol Empire as a whole remained a strong and united kingdom (Ulus Batiy, Sattarkhan).