The daughter of Hinton Maddox; she married, first, Duke Gifford, and second, in 1805, John Henry Petty, second Marquess of Lansdowne. Maria Edgeworth described her as “perfectly natural, daring to be herself, gentle, sprightly, amiable, and engaging.”

REFERENCES TO Lady Mary Petty [née Maddox]:

William Ponsonby to Lady Caroline Lamb, 20 April 1823 in Lady Morgan’s Memoirs: Autobiography, Diaries and Correspondence. Second Edition, Revised 2 vols (London: Wm. H. Allen & Co., 1863)

Lady Caroline Lamb to William Godwin, [September? 1823] in William Godwin: his Friends and Contemporaries (London: Henry S. King & Co., 1876)

John Whishaw to Elizabeth Smith, 27 April 1833 in The “Pope” of Holland House: Selections from the Correspondence of John Whishaw and his Friends 1813-1840 (London: T. Fisher Unwin, 1906)