Zhuangyuan

Also known as trạng nguyên, principal graduate, primus, optimus

Zhuangyuan, or jangwon in Korean and trạng nguyên in Vietnamese, variously translated into English as principal graduate, primus, or optimus, was the title given to the scholar who achieved the highest score on highest level of the Imperial examination, (in the Tang dynasty) and (in the Song dynasty) in imperial China, Gwageo examinations in Goryeo and Joseon era Korea, and Vietnam.