(en) Martin J. Levy, « Fitzherbert [née Smythe; other married name Weld], Maria Anne (1756–1837) », dans Oxford Dictionary of National Biography, Oxford University Press, (DOI10.1093/ref:odnb/9603)
google.fr
books.google.fr
(en) George Griffiths (of Weston-under-Lizard), A History of Tong, Shropshire: Its Church, Manor, Parish, College, Early Owners, and Clergy, with Notes on Boscobel, Horne & Bennion, (lire en ligne), « Maria Anna Fitzherbert », p. 169-171
(en) Valerie Irvine, The King's Wife: George IV and Mrs Fitzherbert, A&C Black, (lire en ligne), p. 10-12
(en) Valerie Irvine, The King's Wife: George IV and Mrs Fitzherbert, A&C Black, (lire en ligne), p. 18-27
(en) Ernest Anthony Smith, George IV, Yale University Press, , 306 p. (ISBN978-0-300-07685-1, lire en ligne), « Maria Fitzherbert », p. 33-38
(en) Valerie Irvine, The King's Wife: George IV and Mrs Fitzherbert, A&C Black, (lire en ligne), p. 133
historicengland.org.uk
(en) Miranda Kauffman, « English Heritage Properties - 1600-1830, Slavery Connections - A Report Undertaken to Mark the Bicentenary of the Abolition of the British Atlantic Slave Trade », Historic England, vol. 1 : Report and Appendix 1, , p. 46–47 (lire en ligne)
