Dido Elizabeth Belle was a free black biracial British gentlewoman. She was born into slavery and illegitimate; her mother, Maria Belle, was an enslaved Black woman in the British West Indies. Her father was Sir John Lindsay, a British career naval officer who was stationed there; later knighted and promoted to admiral. Lindsay took Belle with him when he returned to England in 1765, entrusting her upbringing to his uncle William Murray, 1st Earl of Mansfield, and his wife Elizabeth Murray, Countess of Mansfield. The Murrays educated Belle, bringing her up as a free gentlewoman at their Kenwood House, together with another great-niece, Lady Elizabeth Murray, whose mother had died. Lady Elizabeth and Belle were second cousins. Belle lived there for 30 years. In his will of 1793, Lord Mansfield provided an outright sum and an annuity to her.

Rear Admiral Sir John Lindsay was a British naval officer of the 18th century, who achieved the rank of rear admiral late in his career. Joining the Navy during the Seven Years' War, he served off France, followed by service for several years as captain of a warship stationed in the West Indies. After war's end, he returned to Britain, serving as an MP for Aberdeen Burghs from 1767 to 1768. From August 1769 to March 1772 Lindsay was promoted to commodore and assigned as commander-in-chief of the East Indies Station. He resigned from the Navy for a period following the Battle of Ushant (1778) off the coast of France, during the American War of Independence. In 1784 he was assigned as commodore and commander-in-chief in the Mediterranean. In the last year of his life, he was promoted to rear admiral as an honorary position, as his failing health prevented him from taking a command.