An Chu Van An (1292–1370, born Chu An) was a confunicanist, teacher, physician and high-ranking mandarin of the Tran Dynasty. Chu Van An was born in Van Thon village, Quang Liet commune, district Thanh Tri (present day Thanh Tri district, Hanoi). In the early life, he was famous as a straightforward man who passed the doctoral examination (Thai Hoc Sinh) but refused to become a mandarin. Instead, An opened a school and began his career as a Confucian teacher in Huynh Cung village in district Thanh Tri. An teaching played an important role in spreading Confucianism into a Buddhist Vietnam in this time. Under the reign of Tran Minh Tong (1314–1329), An became a teacher at the Quoc Tu Giam where he was responsible for teaching the crown prince Vuong (future emeperor Tran Hien Tong). Under the reign of emperor Tran Du Tong, An become a high-ranking mandarin. Later, An resigned and return to his home-village because Tran Du Tong refused his request of beheading eight other mandarins.http://books.google.com/books?id=Jskyi00bspcC&pg=PA89&dq=Chu+Van+An&hl=en&ei=O1R_TKfsIIOgvQOrpoCpBA&sa=X&oi=book_result&ct=result&resnum=9&ved=0CFIQ6AEwCDgKv=onepage&q=Chu%20Van%20An&f=false In the rest of his life, An continued his teaching career and wrote books. He dead of illness in 1370.

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