pontifical
... that a pontiff in pontificals may pontificate with a pontifical at a Pontifical during his pontificate?
... that a <a href="./Pope" id="mwAp0" rel="mw:WikiLink" title="Pope">pontiff</a> in <a href="./Pontifical_vestments" id="mwAp4" rel="mw:WikiLink" title="Pontifical vestments">pontificals</a> may pontificate with a <b id="mwAp8"><a href="./Pontifical" id="mwAqA" rel="mw:WikiLink" title="Pontifical">pontifical</a></b> at a <a href="./Pontifical_High_Mass" id="mwAqE" rel="mw:WikiLink" title="Pontifical High Mass">Pontifical</a> during his <a href="./Pontificate" id="mwAqI" rel="mw:WikiLink" title="Pontificate">pontificate</a>?