<page_title> List of monarchs of Mercia </page_title> <section_title> Kings of the Mercians </section_title> <table> <cell> Cœnwulf <col_header> Ruler </col_header> </cell> <cell> 796–821 <col_header> Reign </col_header> </cell> <cell> 821 <col_header> Died </col_header> </cell> </table>
Coenwulf was the King of Mercia from 796 until his death in 821.