《元史·列传·卷六十二》
珪之子景元掌管皇帝符印，平时一天也未离开宿卫，这时因父病重，立即告假回家。
继丁母忧，庐墓寝苫啜粥者三年。
Zhang Gui’s son Jingyuan was in charge of the emperor's imperial seal. Usually, he never left the emperor in a day. At this time, because his father was seriously ill, he immediately asked for leave to return home.