《资治通鉴·陈纪·陈纪七》
北周下诏，以洛阳为东京；征调潼关以东各州的士兵修建洛阳宫，平时服劳役的有四万人。
周下诏，以洛阳为东京；发山东诸州兵治洛阳宫，常役四万人。
Northern Zhou issued an edict, making Luoyang the Eastern Capital; soldiers were conscripted from each state east of the Tong Pass to construct the Luoyang Palace, and 40,000 people were engaged in regular labor.