T'u-lu-fan

Subsequently the intercourse with T'u-lu-fan was not interrupted. This realm used to send as tribute to China highly-bred horses and gerfalcons, and products of the country. The Son of Heaven also sent his envoys to T'u-lu-fan.

Source: wiktionary

The tributary ambassadors of the T'u-hsieh-t'u (Khanate) of the Khalkhas, and the tributary ambassadors of T'u-lu-fan and Holland were feasted by the Board of Rites. (103,9a)

Source: wiktionary

The country is very far from our capital, but we can reach their territory directly by the land route . . . Beyond T’u-lu-fan [Turfan] is Russia.

Source: wiktionary

The traditional conceit that places China in the middle of the world is aptly reflected in the diffusion of the ten kings westward and eastward. German expeditions to Central Asia in the first decade of the twentieth century unearthed literary and pictorial references to the ten kings dating from the eleventh century or later. The expeditions, led by Alfred Grünwedel and Albert von Le Coq, concentrated on the modern district of T’u-lu-fan (Turkish: Turfan), formerly Kao-ch’ang (Turkish: Qočo), located in what is now called the Xinjiang Uighur Autonomous Region, known to earlier European explorers as Chinese Turkestan.

Source: wiktionary