《资治通鉴·陈纪·陈纪二》
夏季四月，丁亥，陈朝立皇子陈伯信为衡阳王，让他承奉献王陈昌的祭祀。
夏，四月，丁亥，立皇子伯信为衡阳王，奉献王祀。
In the fourth month of the summer, in the Dinghai year, the Chen dynasty established the crown prince Chen Boxin as Prince Hengyang, allowing him to take over the sacrifices of Prince Hengyang Chen Chang.