<a href="https://en.wikipedia.org/wiki/Pope_Pontian" id="mwGA" rel="mw:WikiLink" title="Pope Pontian">Pope Pontian</a> succeeds <a href="https://en.wikipedia.org/wiki/Pope_Urban_I" id="mwGQ" rel="mw:WikiLink" title="Pope Urban I">Urban I</a> as the eighteenth <a href="https://en.wikipedia.org/wiki/Pope" id="mwGg" rel="mw:WikiLink" title="Pope">pope</a>. After being exiled to Sardinia, he became the first pope to resign his office.