《宋书·志·卷十四》
中书侍郎范宁上奏： 考查《丧服》传，如果有人在宫中死亡，三个月不举行祭祀，不论贵贱和老幼都如此。
中书侍郎范宁奏： 案《丧服》传，有死宫中者，三月不举祭，不别长幼之与贵贱也。
Fan Ning, the Minister of Zhongshu, memorialized: According to the commentary of "Sang Fu", if someone dies in the palace, no sacrifices shall be held for three months, regardless of their honor or age.