Milceni
...that the medieval Slavic Milceni tribe, ancestors of the Sorbs of Germany, are mentioned in The Song of Roland?
...that the medieval Slavic <b id="mwCPI"><a href="./Milceni" id="mwCPM" rel="mw:WikiLink" title="Milceni">Milceni</a></b> tribe, ancestors of the <a href="./Sorbs" id="mwCPQ" rel="mw:WikiLink" title="Sorbs">Sorbs</a> of <a href="./Germany" id="mwCPU" rel="mw:WikiLink" title="Germany">Germany</a>, are mentioned in <i id="mwCPY"><a class="mw-redirect" href="./The_Song_of_Roland" id="mwCPc" rel="mw:WikiLink" title="The Song of Roland">The Song of Roland</a></i>?