Obo II
... that Ch. Obo II is considered to be the father of the modern American Cocker Spaniel?
... that <a href="./Championship_(dog)" id="mwC8A" rel="mw:WikiLink" title="Championship (dog)">Ch.</a> <b id="mwC8E"><a href="./Obo_II" id="mwC8I" rel="mw:WikiLink" title="Obo II">Obo II</a></b> is considered to be the father of the modern <a href="./American_Cocker_Spaniel" id="mwC8M" rel="mw:WikiLink" title="American Cocker Spaniel">American Cocker Spaniel</a>?