The genealogy of Gongyang Zhuan has been a contested issue among scholars. According to the Book of Han, Bu Shang (Zixia), one of the top disciples of Confucius, taught Confucius' class notes to his disciple Gongyang Gao (公羊高) of the State of Qi during the Warring States period (475–221 BCE). An oral commentary at first, it was written down and edited during the early Han Dynasty by Gongyang Gao's decedent Gongyang Shou (公羊壽) and his collaborator Humu Sheng (胡母生).
