《新唐书·列传·卷七十八》
段珂被任命为颍州司马。颜真卿，字清臣，秘书监颜师古第五代侄孙。
颜真卿，字清臣，秘书监师古五世从孙。
Duan Ke was appointed Yingzhou Sima. Yan Zhenqing, courtesy name Qingchen, was the 5th generation grandnephew of the Secretary of State Yan Shigu.