Her article in thepeerage is here. She married Henry Fiennes Pelham-Clinton, Earl of Lincoln in 1775. Unfortunately, he died three years later. She bore two children and didn’t remarry.
From iveinternet.ru/users/2010239/post366772637.
Lady Frances’ coiffure is piled high and has a gushing bun on the crown, suggesting later 1760s. She is dressed in columnar British casual style. An over-dress falls away from the bow on her bodice like the over-dress from a zone bodice, but there is no full skirt to carry the over-dress.
Keywords: Hoare, Frances Pelham-Clinton, Seymour-Conway family, Pelham-Clinton family, Countess, British, high wavy coiffure, curly bun, U-décolletage, bows, over-dress, long tight sleeves, under-dress, no waistline, close skirt, shoes