<page_title> List of rulers of Lorraine </page_title> <section_title> House of Metz (Ardennes-Metz) </section_title> <table> <cell> Frederick IV <col_header> Name </col_header> </cell> <cell> 13 May 1312 <col_header> Start term </col_header> </cell> </table>
Frederick IV was the Duke of Lorraine from 1312.