Rouen duck
...that when first introduced to England there was confusion over whether the Rouen duck was named after the Rhône region, Cardinal de Rohan, the colour roan, or the town Rouen?
...that when first introduced to <a href="./England" id="mwCs0" rel="mw:WikiLink" title="England">England</a> there was confusion over whether the <b id="mwCs4"><a href="./Rouen_duck" id="mwCs8" rel="mw:WikiLink" title="Rouen duck">Rouen duck</a></b> was named after the <a href="./Rhône" id="mwCtA" rel="mw:WikiLink" title="Rhône">Rhône</a> region, <a class="mw-redirect" href="./Louis_René_Édouard,_cardinal_de_Rohan" id="mwCtE" rel="mw:WikiLink" title="Louis René Édouard, cardinal de Rohan">Cardinal de Rohan</a>, the colour <a href="./Roan_(color)" id="mwCtI" rel="mw:WikiLink" title="Roan (color)">roan</a>, or the town <a href="./Rouen" id="mwCtM" rel="mw:WikiLink" title="Rouen">Rouen</a>?