{
  "system" : "China Historical GIS, Harvard University and Fudan University",
  "license" : "CC BY-NC 4.0",
  "uri" : "http://tgaz.fudan.edu.cn/tgaz/placename/hvd_88372",
  "sys_id" : "hvd_88372",
  "sys_id of alternate" : "",
  "spellings" : [
    {
      "written form" : "恒山郡",
      "script" : "traditional Chinese",
      "exonym language" : "",
      "attested by" : "",
      "note" : ""
    },
    {
      "written form" : "恒山郡",
      "script" : "simplified Chinese",
      "exonym language" : "",
      "attested by" : "",
      "note" : ""
    },
    {
      "written form" : "Hengshan Jun",
      "transcribed in" : "Pinyin",
      "attested by" : "",
      "note" : ""
    }
  ],
  "feature_type" : {
    "name" : "郡",
    "alternate name" : "郡",
    "transcription" : "jun",
    "English" : "commandery"
  },
  "temporal" : {
    "begin" : "742",
    "begin rule" : "4",
    "end" : "755",
    "end rule" : "4"
  },
  "spatial" : {
    "object_type" : "POINT",
    "xy_type" : "point",
    "latitude" : "38.14011",
    "longitude" : "114.56364",
    "source" : "FROM_AC",
    "present_location" : [
      {
        "country code" : "cn",
        "text" : "今河北正定县驻地正定镇",
        "source" : "Fudan",
        "attestation" : ""
      }
    ]
  },
  "historical_context" : {
    "part of" : [
      {
        "begin year" : "742",
        "end year" : "755",
        "parent id" : "hvd_113618",
        "name" : "唐",
        "transcribed" : "Tang"
      }
    ],
    "subordinate units" : [
      {
        "begin_year" : "742",
        "end_year" : "755",
        "child id" : "hvd_45004",
        "name" : "九门县",
        "transcribed" : "Jiumen Xian"
      },
      {
        "begin_year" : "742",
        "end_year" : "755",
        "child id" : "hvd_44973",
        "name" : "井陉县",
        "transcribed" : "Jingxing Xian"
      },
      {
        "begin_year" : "742",
        "end_year" : "755",
        "child id" : "hvd_88449",
        "name" : "灵寿县",
        "transcribed" : "Lingshou Xian"
      },
      {
        "begin_year" : "742",
        "end_year" : "755",
        "child id" : "hvd_44969",
        "name" : "石邑县",
        "transcribed" : "Shiyi Xian"
      },
      {
        "begin_year" : "742",
        "end_year" : "755",
        "child id" : "hvd_44985",
        "name" : "行唐县",
        "transcribed" : "Xingtang Xian"
      }
    ],
    "preceded by" : [
      {
        "preceded by id" : "hvd_88371",
        "name" : "恒州",
        "transcribed" : "Heng Zhou"
      }
    ]
  },
  "data source" : "CHGIS",
  "source note" : "恒山郡（742-755）
唐天宝元年（742年）改恒州置。⑴治真定县（今河北正定县驻地正定镇）。天宝十五年（至德元年，756年）改名为平山郡。

⑴《新唐书》卷39《地理三》，北京，中华书局，第1014页。
《旧唐书》卷39《地理二》，北京，中华书局，1975年，第5册，第1503页。
按：《旧唐书》本纪及地理志均作常山郡，《新唐书》本纪及地理志多作恒山郡，《新唐书?地理志》对此有解释：“天宝元年更郡名，十五载曰平山，寻复为恒山。元和十五年避穆宗名更。”（第1014页），是元和十五年（820年）前应作恒州、恒山郡，此年穆宗登基后改作镇州常山郡。",
  "source uri" : ""
}