marrying
... that Christopher O'Neill declined a royal title upon marrying Princess Madeleine of Sweden?
... that <a href="./Christopher_O'Neill" id="mwBvo" rel="mw:WikiLink" title="Christopher O'Neill">Christopher O'Neill</a> <i id="mwBvs">(pictured)</i> declined a royal title upon <b id="mwBvw"><a class="mw-redirect" href="./Wedding_of_Princess_Madeleine_of_Sweden_and_Christopher_O'Neill" id="mwBv0" rel="mw:WikiLink" title="Wedding of Princess Madeleine of Sweden and Christopher O'Neill">marrying</a></b> <a href="./Princess_Madeleine,_Duchess_of_Hälsingland_and_Gästrikland" id="mwBv4" rel="mw:WikiLink" title="Princess Madeleine, Duchess of Hälsingland and Gästrikland">Princess Madeleine of Sweden</a>?