Gong's Ennoblement By The Yuan Dynasty
After the overthrow of the Song Dynasty, former Emperor Gong relocated to the Mongol capital at Khanbaliq or Dadu (modern day Beijing) then later to Shangdu or Xanadu, Tibet, (at that time called Tubo (蕃習) and afterwards to the Ganzhou District of Gansu Province. Some sources also claim that he lived in Qianzhou (謙州) (modern day Tuva in South Central Siberia). His sojourns make Gong the most well-travelled Han emperor in the history of China.
Read more about this topic: Emperor Gong Of Song