1840 Lady Elizabeth Harcourt by Sir George Hayter (auctioned by Sotheby's)
This is her article from thepeerage.com, "Lady Elizabeth Bingham
F, #30668, b. circa 1795, d. 9 September 1838 Consanguinity Index=0.0%.
Lady Elizabeth Bingham was born circa 1795. She married George Granville Vernon-Harcourt, son of Most Rev. and Rt. Hon. Edward Venables-Vernon-Harcourt and Lady Anne Leveson-Gower, on 27 March 1815. She died on 9 September 1838.
She was the daughter of Richard Bingham, 2nd Earl of Lucan and Lady Elizabeth Belasyse. Her married name became Harcourt.
Child of Lady Elizabeth Bingham and George Granville Vernon-Harcourt
Elizabeth Lavinia Vernon-Harcourt+1 b. 1816, d. 16 Oct 1858."
From Wikimedia; spots in background removed with Photoshop and image made lighter by gogm to bring out detail.