Frédéric Passy
... that Frédéric Passy was challenged to a duel over the 1901 Nobel Peace Prize?
... that <b id="mwB70"><a href="./Frédéric_Passy" id="mwB74" rel="mw:WikiLink" title="Frédéric Passy">Frédéric Passy</a></b> was challenged to a duel over the 1901 <a href="./Nobel_Peace_Prize" id="mwB78" rel="mw:WikiLink" title="Nobel Peace Prize">Nobel Peace Prize</a>?