Page "Zheng He" Paragraph 2

He was the great great great grandson of Sayyid Ajjal Shams al-Din Omar, a Persian who served in the administration of the Mongolian Empire and was appointed governor of Yunnan during the early Yuan Dynasty.

Both his grandfather and great-grandfather carried the title of Hajji, which indicates they had made the pilgrimage to Mecca.

His great-grandfather was named Bayan and may have been a member of a Mongol garrison in Yunnan.