<page_title> List of monarchs of Vietnam </page_title> <section_title> Later Lý dynasty (1010–1225) </section_title> <table> <cell> Lý Nhân Tông <col_header> Emperor </col_header> </cell> <cell> 1072–1127 <col_header> Reign </col_header> </cell> </table>
The 55-year rule of Lý Nhân Tông is the longest reign in the history of Vietnamese monarchs.