Sophia Thornton (died 1887) (1812–1887) Parents Marianne Sykes Henry Thornton Children Lady Florence Leslie-Melville Ronald Leslie-Melville, 11th Earl of Leven Norman Leslie-Melville Lady Kathleen Leslie-Melville Siblings Marianne Thornton Henry Sykes Thornton Laura Thornton Watson Joseph Thornton Partners John Leslie-Melville, 9th Earl of Leven