Her article in thepeerage is here.
From bbc.co.
This 1791 Hoppner portrait of Mary, Lady Trevelyan, shows that French Neo-Classical style jumped the Channel at warp speed.
Keywords: 1791, Hoppner, Mary Wilson, Lady Trevelyan, Wilson family, Trevelyan family, British, straight coiffure, chemise, square neckline, dress, vee décolletage, neckline ruff, waist band, Empire low waistline, close skirt, over-dress, long tight sleeves, wrap, lace