Spaniel
... that the winner of the 1831 Derby Stakes, Spaniel, was also the smallest horse in the race?
... that the winner of the 1831 <a href="./Epsom_Derby" id="mwDjU" rel="mw:WikiLink" title="Epsom Derby">Derby Stakes</a>, <b id="mwDjY"><a href="./Spaniel_(horse)" id="mwDjc" rel="mw:WikiLink" title="Spaniel (horse)">Spaniel</a></b>, was also the smallest horse in the race?