XML : Get xml element with specific attribute value in XmlDocument

Based on the XML below:

  <?xml version="1.0" encoding="Windows-1252"?>  <ConfData>     <CfgAgentGroup>      <CfgGroup>        <DBID value="109" />        <tenantDBID value="1" />        <name value="group1" />        <contractDBID value="0" />      </CfgGroup>      <agentDBIDs>        <DBID value="103" />        <DBID value="994" />      </agentDBIDs>    </CfgAgentGroup>    <CfgAgentGroup>      <CfgGroup>        <DBID value="110" />        <tenantDBID value="1" />        <name value="group2" />             <contractDBID value="0" />      </CfgGroup>      <agentDBIDs>        <DBID value="102" />        <DBID value="103" />                 <DBID value="1019" />        <DBID value="1020" />      </agentDBIDs>    </CfgAgentGroup>  </ConfData>    

How can I get the <CfgGroup> element if the attribute value is 103 (referring to agentDBIDs/DBID value, NOT CfgGroup/DBID value)?

Any suggestions?