<?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_70216</uri> <spellings>    <spelling>      <written-form script="traditional Chinese">雲陽縣</written-form>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>    <spelling>      <written-form script="simplified Chinese">云阳县</written-form>      <exonym-lang></exonym-lang>      <attested-by></attested-by>      <note></note>    </spelling>    <spelling>      <transcription system="Pinyin">Yunyang 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>424</begin>    <begin-rule>4</begin-rule>    <end>626</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>34.63850</degrees-latitude>    <longitude-direction>E</longitude-direction>    <degrees-longitude>108.81562</degrees-longitude>    <geo-source>FROM_AC</geo-source>    <present-location>    </present-location>  </spatial>  <historical-context>    <part-of-relationships>      <part-of parent-id="hvd_115042" from="424" to="556" >        <parent-name>北地郡</parent-name>        <transcribed-name>Beidi Jun</transcribed-name>      </part-of>      <part-of parent-id="hvd_116155" from="557" to="582" >        <parent-name>云阳郡</parent-name>        <transcribed-name>Yunyang Jun</transcribed-name>      </part-of>      <part-of parent-id="hvd_110150" from="583" to="606" >        <parent-name>雍州</parent-name>        <transcribed-name>Yong Zhou</transcribed-name>      </part-of>      <part-of parent-id="hvd_110242" from="607" to="617" >        <parent-name>京兆郡</parent-name>        <transcribed-name>Jingzhao Jun</transcribed-name>      </part-of>      <part-of parent-id="hvd_110748" from="618" to="626" >        <parent-name>雍州</parent-name>        <transcribed-name>Yong Zhou</transcribed-name>      </part-of>    </part-of-relationships>    <subordinate-units><br />
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        <transcribed-name></transcribed-name>      </subordinate-unit>    </subordinate-units>  </historical-context>  <data-source>CHGIS</data-source>  <source-note>    <![CDATA[      云阳县（424-626） 

北魏太武帝置，属北地郡。①北周于县置云阳郡，隋开皇三年（583）属雍州，大业三年（607）属京兆郡。②唐武德元年（618）属雍州。③贞观元年（627）改云阳为池阳。治今陕西泾阳县云阳镇。④ 

注：
①《魏书》卷106 下?志第七?地形志下?雍州：北地郡，领县七，云阳二汉属左冯翊，晋罢，后复属。（中华书局，1974 年，7 册，2609 页）
《嘉庆重修一统志》卷248?邠州直隶州（《四部丛刊续编》，商务印书馆，1934 年，15 册）
②《隋书》卷29?志第二十四?地理上?京兆郡：云阳旧置，后周置云阳郡，开皇初郡废。（中华书局，1973 年，3 册，808 页）
③《旧唐书》第38?志第十八?地理一?京兆府：隋京兆郡，……武德元年，改为雍州。……贞观元年，废鹿苑入高陵县，废宁人、玉山入蓝田县，改云阳为池阳县，改华池为三原县。（中华书局，1975 年，5 册，1395 页）
④《太平寰宇记》卷31?关西道七?耀州：云阳县，后魏罢护军，更于今理别置云阳县，隋因之。今陕西泾阳县北有云阳镇，疑是。    ]]>  </source-note>  <source-uri>      </source-uri></placename>