<!DOCTYPE orderedlist PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<orderedlist numeration="lowerroman">
<listitem>
<para>One</para>
</listitem>
<listitem>
<para>Two</para>
</listitem>
<listitem>
<para>Three</para>
</listitem>
<listitem>
<para>Four</para>
</listitem>
</orderedlist>