One of the daughters of 3rd Viscount Molesworth, <a href="https://www.wikidata.org/wiki/Q86916414" class="extiw" title="d:Q86916414"><span title="(1749-1824)">Louisa Molesworth</span></a> (1749-1824), wife of <a href="https://en.wikipedia.org/wiki/en:William_Ponsonby,_1st_Baron_Ponsonby" class="extiw" title="w:en:William Ponsonby, 1st Baron Ponsonby"><span title="British politician">William Ponsonby, 1st Baron Ponsonby</span></a>, or her sister <a href="https://www.wikidata.org/wiki/Q75285791" class="extiw" title="d:Q75285791"><span title="(died 1813)">Henrietta Molesworth</span></a> (1745-1839)
<bdi><a href="https://en.wikipedia.org/wiki/en:Hugh_Douglas_Hamilton" class="extiw" title="w:en:Hugh Douglas Hamilton"><span title="Irish portrait-painter (1740-1808)">Hugh Douglas Hamilton</span></a>
</bdi>
circa 1750-1800
"photograph" (invalid source)