Marco Polo appointed governor
Khan liked the youthful Marco and conscripted him into service for the Empire.
Marco served in several high-level government positions, including as ambassador and as the governor of the city of Yangzhou. While the Great Khan enjoyed having the Polos as his subjects and diplomats, Khan eventually consented to allow them to leave the Empire, as long as they would escort a princess who was scheduled to wed a Persian king.
Marco knew four languages, and the family had accumulated a great deal of knowledge and experience that was useful to Khan. It is possible that he became a government official; he wrote about many imperial visits to China's southern and eastern provinces, the far south and Burma.
Marco Polo lived for 16 years in China where he was employed for several years by Kublai Khan. He served as Governor of Yangzhou, but then left China in 1292, returned to Venice (1295), and fought against the Genoese, but was captured.
The men remained in China for 17 years, during which time Marco carried out diplomatic missions throughout the empire. Marco claims that he held the position of governor over the large commercial city of Yangzhou. He also claimed to have visited hundreds of Christian churches. These would have been the result of Christianity that had arrived in 635 from Christian merchants along the Silk Road.