Dido Elizabeth Belle Lindsay was born in 1761, the natural daughter of Maria Belle, an enslaved African woman in the West Indies, and Captain Sir John Lindsay, a British Royal Navy officer. After Dido's mother's death in 1765, Captain Lindsay takes her from the West Indies slums and entrusts her to his uncle William Murray, 1st Earl of Mansfield, the Lord Chief Justice of England and Wales, and his wife Elizabeth, who live at Kenwood House, an estate in Hampstead outside London. Lord and Lady Mansfield raise Dido as a free gentlewoman, along with their niece Lady Elizabeth Murray, who came to live with them after her mother died and her father remarried. When the two cousins reach adulthood, the Mansfields commission an oil portrait of their two great-nieces, but Dido is unhappy about sitting for it as she is worried that it will portray her as a subordinate, similar to other portraits she has seen depicting aristocrats with black servants. Dido's father dies and leaves her the generous sum of £2,000 a year, enough to make her an heiress. Lady Elizabeth, by contrast, will have no income from her father, whose son from his new wife has been named his sole heir. Arrangements are made for Elizabeth to have her coming-out to society, but Lord and Lady Mansfield believe no gentleman will agree to marry Dido because of her mixed-race status, so while she will travel to London with her cousin, she will not be "out" to society.