<page_title> Pope Callixtus I </page_title> <section_title> External links </section_title> <table> <cell> Preceded by Zephyrinus <col_header> Titles of the Great Christian Church </col_header> </cell> <cell> Bishop of Rome Pope 217–222 <col_header> Titles of the Great Christian Church </col_header> </cell> </table>
In 217, Callixtus followed Zephyrinus as Bishop of Rome.