<page_title> List of operas by Simon Mayr </page_title> <section_title> List </section_title> <table> <cell> Demetrio <col_header> Title </col_header> </cell> <cell> 27 December 1823 <col_header> Premiere date </col_header> </cell> <cell> Turin, Teatro Regio <col_header> Place, theatre </col_header> </cell> </table>
"Demetrio" is a 1823 opera by Mayr, staged in Turin.