Frances Jocelyn, Viscountess Jocelyn Cowper was born in 1820, the youngest daughter of Emily Lamb, Countess Cowper, a daughter of Peniston Lamb, 1st Viscount Melbourne. Her paternity was officially attributed to Lady Cowper's husband, the 5th Earl Cowper. However, the historian K.D. Reynolds and others have argued that Henry John Temple, 3rd Viscount Palmerston was actually the father of Lady Frances and her brother William. Once widowed, her mother married Palmerston, though Lady Frances did not care for him. He became Prime Minister in 1859. In 1838, Lady Frances served as a maid of honour at the Coronation of Queen Victoria, and she also
Peniston Lamb, 1st Viscount Melbourne many affairs. George is reputed to be the son of George IV, with William and Emily allegedly fathered by Lord Egremont. Whether Melbourne was made unhappy by his wife's affairs is unclear: he was a mild, easygoing and rather stupid man who avoided trouble, and invariably deferred to his wife, who was by far the stronger and more intelligent partner in the marriage. Their one serious quarrel was caused by the death of their eldest son Pen (who was undoubtedly Melbourne's child); he angrily refused to make the same allowance to William (who was almost certainly not Melbourne's child) as