《北齐书·列传·卷二十八》
元超遇到一位老母姓捏，可怜他，隐藏在自家十多天，茎童访寻而得到他，袭封堑垣王。
韶逢一老母姓程，哀之，隐于私家十馀日，庄帝访而获焉，袭封彭城王。
Yuan Chao met an old mother named Nie, who felt sorry for him and concealed him in her own home for more than a dozen days. Geng Tong visited and sought him out and succeeded to the title of King of Qiangyuan.