ca. 1702 (based on age of child) Jean Hay, Countess of Rothes with her eldest son John, Lord Leslie by John Baptiste Medina and his studio
This is her article from thepeerage: "Lady Jean Hay F, #28892, d. 4 September 1731
Lady Jean Hay was the daughter of John Hay, 2nd Marquess of Tweeddale and Lady Mary Maitland. She married John Leslie, 9th Earl of Rothes, son of Charles Hamilton, 5th Earl of Haddington and Margaret Leslie, Countess of Rothes, on 29 April 1697. She died on 4 September 1731.
From 29 April 1697, her married name became Leslie.
Children of Lady Jean Hay and John Leslie, 9th Earl of Rothes:
Colonel Charles Leslie d. 1769
Thomas Leslie d. 1772
John Leslie, 10th Earl of Rothes+ b. 1698, d. 1767."