Bartian
...in 1293, the Bartian tribe of Prussia asked Lithuanian Grand Duke Vytenis for protection against the Teutonic Knights?
...in <a href="./1293" id="mwDCU" rel="mw:WikiLink" title="1293">1293</a>, the <b id="mwDCY"><a href="./Bartians" id="mwDCc" rel="mw:WikiLink" title="Bartians">Bartian</a></b> tribe of <a href="./Prussia" id="mwDCg" rel="mw:WikiLink" title="Prussia">Prussia</a> asked <a href="./Lithuania" id="mwDCk" rel="mw:WikiLink" title="Lithuania">Lithuanian</a> <a class="mw-redirect" href="./Grand_Duke" id="mwDCo" rel="mw:WikiLink" title="Grand Duke">Grand Duke</a> <a href="./Vytenis" id="mwDCs" rel="mw:WikiLink" title="Vytenis">Vytenis</a> for protection against the <a class="mw-redirect" href="./Teutonic_Knights" id="mwDCw" rel="mw:WikiLink" title="Teutonic Knights">Teutonic Knights</a>?