佛祖統紀 35.128

35.128

十五年三月。上東巡狩幸闕里（其處有廢闕址）祠孔子及七十二弟子。上親御講堂。命皇太子諸王說經。封十九代孫孔僖為褒成侯。

In the fifteenth year, in the third month, the Emperor conducted an imperial progress to the east and visited Queli (where the ruins of the gate tower stood). He offered sacrifices to Confucius and the seventy-two disciples. The Emperor personally ascended the lecture hall and commanded the Crown Prince and the various kings to expound the classics. He enfeoffed Kong Xi, a nineteenth-generation descendant, as Marquis of Baocheng.