Prospero Colonna
... that despite being excommunicated by Pope Eugene IV, Prospero Colonna was the leading candidate to be Eugene's successor as Pope?
... that despite being <a class="mw-redirect" href="./Excommunicate" id="mwEM4" rel="mw:WikiLink" title="Excommunicate">excommunicated</a> by <a href="./Pope_Eugene_IV" id="mwEM8" rel="mw:WikiLink" title="Pope Eugene IV">Pope Eugene IV</a>, <b id="mwENA"><a href="./Prospero_Colonna_(cardinal)" id="mwENE" rel="mw:WikiLink" title="Prospero Colonna (cardinal)">Prospero Colonna</a></b> was the leading candidate to be Eugene's successor as Pope?