{ "system" : "China Historical GIS, Harvard University and Fudan University", "license" : "CC BY-NC 4.0", "uri" : "https://maps.cga.harvard.edu/tgaz/placename/hvd_34203", "sys_id" : "hvd_34203", "sys_id of alternate" : "", "spellings" : [ { "written form" : "樂昌郡", "script" : "traditional Chinese", "exonym language" : "", "attested by" : "", "note" : "" }, { "written form" : "乐昌郡", "script" : "simplified Chinese", "exonym language" : "", "attested by" : "", "note" : "" }, { "written form" : "Lechang Jun", "transcribed in" : "Pinyin", "attested by" : "", "note" : "" } ], "feature_type" : { "name" : "郡", "alternate name" : "郡", "transcription" : "jun", "English" : "commandery" }, "temporal" : { "begin" : "479", "begin rule" : "4", "end" : "589", "end rule" : "4" }, "spatial" : { "object_type" : "POINT", "xy_type" : "point", "latitude" : "23.46823", "longitude" : "112.69590", "source" : "FROM_AC", "present_location" : [ { "country code" : "cn", "text" : "广东省四会县北龙湾镇", "source" : "Fudan", "attestation" : "" } ] }, "historical_context" : { "part of" : [ { "begin year" : "479", "end year" : "588", "parent id" : "hvd_30302", "name" : "广州", "transcribed" : "Guang Zhou" }, { "begin year" : "589", "end year" : "589", "parent id" : "hvd_113617", "name" : "隋", "transcribed" : "Sui" } ], "subordinate units" : [ { "begin_year" : "479", "end_year" : "589", "child id" : "hvd_42276", "name" : "义立县", "transcribed" : "Yili Xian" }, { "begin_year" : "479", "end_year" : "589", "child id" : "hvd_42272", "name" : "始昌县", "transcribed" : "Shichang Xian" }, { "begin_year" : "502", "end_year" : "589", "child id" : "hvd_42233", "name" : "威正县", "transcribed" : "Weizheng Xian" } ], "preceded by" : [ { "preceded by id" : "hvd_34202", "name" : "乐昌郡", "transcribed" : "Lechang Jun" } ] }, "data source" : "CHGIS", "source note" : "乐昌郡(479-589年)治所

齐建元元年(479年),迁治始昌县(1)。领始昌,乐山等县。郡治始昌县,治所即今广东省四会县北龙江镇。辖境相当今广东省四会县东北部地区和三水县西北部地区(2)。隋开皇十年(590年),废入广州(3)。

————————————————————
(1),《南齐书》卷14?州郡志上?广州?乐昌郡:“始昌,乐山,宋元,义立,安乐”。(北京,中华书局,1972年,1册,265页)。无乐昌县,作齐高帝建元元年移郡治始昌,以乐昌县并入。
《读史方舆纪要》卷101?肇庆府?高要县?乐昌废县:“在县北。刘宋置县,为乐昌郡治。齐移郡治始昌,以乐昌县并入。隋郡废,又并始昌等县入四会县。…”(北京,中华书局,1955年,5册,4201页)。作齐建元元年(479年),迁治始昌县。
(2),据所领县故址,辖境相当今广东省四会县东北部地区和三水县西北部地区。
(3),《隋书》卷31?地理下南海郡:“四会:旧置绥建郡,又有乐昌郡。平陈,二郡废。大业初又并始昌县入焉。”(北京,中华书局,1973年,3册,880-881页)。", "source uri" : "" }