In 1740 she commissioned William Kent to build her a townhouse at 44 Berkeley Square[1] which is famed for its theatrical staircase. It was built between 1742 and 1744 and she was very involved in its design, proven by her lengthy correspondences with her brother in law 1st Marquess of Rockingham.[3] She was known for entertaining guests at her home and these included Princess Amelia, Horace Walpole and the duke and duchess of Newcastle.[1] Walpole was not her greatest fan, he wrote about her appearance and her "dusky hue" which she shared with other members of her family.[4]
Thomas Pelham-Holles, 1st Duke of Newcastle was the Prime Minister and she wasn't timid in approaching him. She wrote to him to ask about the Princess's pension which was in arrears in 1761. She had identified that others had received their arrears and the Princess had not. Her pointed letters resulted in the arrears being paid.[1]
In 1747 Lady Bell caused a rift in the Finch family when she did not agree to present one of her brother's illegitimate child at court.[3]
In 1764, Horace Walpole reported of her flirting to the 1st Earl of Bath, who owed her half a crown; he sent it the next day, with a wish that he could give her a crown; she replied that though he can't give her a crown, he could give her a coronet, and that she was ready to accept.[5]
Her niece, Lady Henrietta Wentworth eloped with her footman in 1764