<?xml version="1.0" encoding="UTF-8"?><placename>  <system>China Historical GIS, Harvard University and Fudan University</system>  <license>CC BY-NC 4.0</license>  <uri>https://chgis.hudci.org/tgaz/placename/hvd_44499</uri> <spellings>    <spelling>      <written-form script="traditional Chinese">建昌縣</written-form>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>    <spelling>      <written-form script="simplified Chinese">建昌县</written-form>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>    <spelling>      <transcription system="Pinyin">Jianchang Xian</transcription>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>  </spellings>  <feature-type>    <name>县</name>    <alternate-name>縣</alternate-name>    <transcription>xian</transcription>    <translation lang="en">county</translation>  </feature-type>  <temporal>    <begin>557</begin>    <begin-rule>3</begin-rule>    <end>580</end>    <end-rule>4</end-rule>  </temporal>  <spatial>    <object-type>POINT</object-type>    <xy-type>point</xy-type>    <latitude-direction>N</latitude-direction>    <degrees-latitude>31.27374</degrees-latitude>    <longitude-direction>E</longitude-direction>    <degrees-longitude>109.79695</degrees-longitude>    <geo-source>FROM_AC</geo-source>    <present-location><br />
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     </present-location>  </spatial>  <historical-context>    <part-of-relationships>      <part-of parent-id="hvd_115435" from="557" to="580" >        <parent-name>建平郡</parent-name>        <transcribed-name>Jianping Jun</transcribed-name>      </part-of>    </part-of-relationships>    <subordinate-units><br />
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      <subordinate-unit sys-id="" from="" to="" ><br />
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        <name></name><br />
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        <transcribed-name></transcribed-name>      </subordinate-unit>    </subordinate-units>  </historical-context>  <data-source>CHGIS</data-source>  <source-note>    <![CDATA[      建昌县（557—580年）<br><br>北周闵帝元年（557年）改名建昌县。属建平郡。①故址即在今重庆市巫山县北大昌。②隋开皇元年（581年）改名大昌县。③<br><br>注：<br>①《舆地纪胜》卷181《夔州路》：“大宁监……宋、齐以下因之。后周改泰昌县曰建昌，又改建昌曰大昌（《元和郡县志》曰：隋开皇元年改曰大昌县。然《隋志》于大昌县第书曰后周置永昌郡，寻废。而不言改建昌为大昌一节，则大昌非改于隋也。今从《类要》书曰，又改建昌县曰大昌县）。隋属巴东郡。唐属夔州。”（第5册，4653—53页）”王仲荦《北周地理志》：建平郡领建昌县。引《舆地纪胜》引《元和郡县志》曰隋开皇元年改曰大昌县。（上册，376页）按《隋书》卷29《地理志上》：“巴东郡，……大昌，后周置永昌郡，寻废，又废北井县入焉。”（第3册，825页）按北周避宇文泰讳，改泰昌为建昌县，当属可信。其改年姑定为闵帝元年（557年）。如王象之言改大昌县亦在后周时，无证据。今姑从《元和志》隋开皇元年（581年）改为大昌县。<br>②《清嘉庆一统志》第146册，卷398《夔州府二·古迹》：“大昌故城，在巫山县北。……本朝康熙九年省入巫山县。……旧志：故城周一里有奇。明成化七年土筑。在巫山县北一百二十里。”故址当今重庆市巫山县北大昌。<br>③见①。    ]]>  </source-note>  <source-uri>      </source-uri></placename>