China Historical GIS, Harvard University and Fudan University CC BY-NC 4.0 https://maps.cga.harvard.edu/tgaz/placename/hvd_111524 淄青平盧節度使 淄青平卢节度使 Ziqingpinglu Jiedushi 防镇 防鎮 fang zhen defense command 761 4 787 4 POINT point N 36.68287 E 118.47236 唐 Tang CHGIS