Olga Yurievskaya
... that Olga Yurievskaya, a daughter of Alexander II of Russia and Princess Catherine Dolgorukova, was legitimated by her parents' morganatic marriage?
... that <b id="mwBBM"><a class="mw-redirect" href="./Olga_Yurievskaya" id="mwBBQ" rel="mw:WikiLink" title="Olga Yurievskaya">Olga Yurievskaya</a></b>, a daughter of <a href="./Alexander_II_of_Russia" id="mwBBU" rel="mw:WikiLink" title="Alexander II of Russia">Alexander II of Russia</a> and Princess <a class="mw-redirect" href="./Catherine_Dolgorukov" id="mwBBY" rel="mw:WikiLink" title="Catherine Dolgorukov">Catherine Dolgorukova</a>, was legitimated by her parents' <a href="./Morganatic_marriage" id="mwBBc" rel="mw:WikiLink" title="Morganatic marriage">morganatic marriage</a>?