<?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_34116</uri> <spellings>    <spelling>      <written-form script="traditional Chinese">開陽郡</written-form>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>    <spelling>      <written-form script="simplified Chinese">开阳郡</written-form>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>    <spelling>      <transcription system="Pinyin">Kaiyang Jun</transcription>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>  </spellings>  <feature-type>    <name>郡</name>    <alternate-name>郡</alternate-name>    <transcription>jun</transcription>    <translation lang="en">commandery</translation>  </feature-type>  <temporal>    <begin>742</begin>    <begin-rule>4</begin-rule>    <end>757</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>22.54706</degrees-latitude>    <longitude-direction>E</longitude-direction>    <degrees-longitude>111.43831</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_113618" from="742" to="755" >        <parent-name>唐</parent-name>        <transcribed-name>Tang</transcribed-name>      </part-of>      <part-of parent-id="hvd_30185" from="756" to="757" >        <parent-name>岭南节度使</parent-name>        <transcribed-name>Lingnan Jiedus</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[      <html><body>开阳郡（742-757年）治所和界线<br><br>唐天宝元年（742年）以泷州改名（1）。领泷水、开阳、永宁、安南等县。州治泷水县，治所即今广东省罗定县罗镜镇。辖境相当今广东省罗定县和信宜县蚊子坑、凤凰岭、怀乡街、湘垌、石人顶、坑尾一线以东北地区，云浮县都骑、大云雾山以西地区（2）。乾元元年（758年）复为泷州（3）。<br><br>————————————————————<br>（1），《旧唐书》卷41?岭南道?泷州：“隋永熙郡之泷水县。武德四年，平萧铣，置泷州。天宝元年改为开阳郡治。乾元元年复为泷州。”泷水县：“州所治。汉端溪县地，属苍梧郡。晋分端溪立泷乡，即今治。梁分广熙郡置建州，又分建州之双头洞立双州。隋改泷乡为平原县，又改为泷水。”开阳县：“隋废县。武德四年分泷水置。”永宁县：“武德四年，于安遂县置药州，领安遂、永宁、安南、永业四县。贞观中，废药州，以永宁属泷州。本隋永熙县，武德五年，改为永宁县。”镇南县：“隋安南县。至德二年九月，改为镇南。”建水县：“新置。”（北京，中华书局，1975年，5册，1720页）。<br>（2），据所领新旧县治故址，并参考宣统元年《广东舆地全图》，辖境相当今广东省罗定县和信宜县蚊子坑、凤凰岭、怀乡街、湘垌、石人顶、坑尾一线以东北地区，云浮县都骑、大云雾山以西地区。<br>（3），见注（1）。</body></html>    ]]>  </source-note>  <source-uri>      </source-uri></placename>