Lady Harriet Cavendish
... that Lady Harriet Cavendish's marriage to Granville Leveson-Gower was arranged by her aunt, who had been his lover for seventeen years?
... that <b id="mwAiE"><a href="./Harriet_Leveson-Gower,_Countess_Granville" id="mwAiI" rel="mw:WikiLink" title="Harriet Leveson-Gower, Countess Granville">Lady Harriet Cavendish</a></b><span about="#mwt24" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwAiM" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> marriage to <a href="./Granville_Leveson-Gower,_1st_Earl_Granville" id="mwAiQ" rel="mw:WikiLink" title="Granville Leveson-Gower, 1st Earl Granville">Granville Leveson-Gower</a> was arranged by <a href="./Henrietta_Ponsonby,_Countess_of_Bessborough" id="mwAiU" rel="mw:WikiLink" title="Henrietta Ponsonby, Countess of Bessborough">her aunt</a>, who had been his lover for seventeen years?