《旧唐书·本纪·卷二十》
何况洛阳本是建都的旧京，又是我皇家的第二处住宅，轩辕皇帝的陵园通向它的左边，周的王城郏辱阝延伸到它的前面。
况建鼎旧京，我家二宅，轘辕通其左，郏、鄏引其前。
Moreover, Luoyang was the old capital and the second residence of our imperial house, with the tomb of the Yellow Emperor to the east and the royal city of Jieyu of the Zhou dynasty extending to the front.