Dadu, also known as Khanbaliq, capital city of the Yuan Dynasty, located in modern Beijing, People's Republic of China
The name may be an Arabized version of the Turkic word khaganbaligh, or "city of the Khagan" (cf. Khanbaliq in China, which derives from the same etymology.)
When Shidebala stayed at Nanpo on his way from the summer palace Shangdu to the capital Dadu of the Yuan Dynasty, Shidibala and Bayiju were assassinated by Tegshi, who attacked Shidibala's Ordo with Asud guards and other soldiers under him.