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
William Lamb, 2nd Viscount Melbourne Lamb's hallmark was finding the middle ground. Though a Whig, he accepted (29 April 1827) the post of Chief Secretary for Ireland in the moderate Tory governments of George Canning and Lord Goderich. Upon the death of his father in 1828 and his becoming the 2nd Viscount Melbourne, of Kilmore in the County of Cavan, he moved to the House of Lords. He had spent 25 years in the Commons, largely as a backbencher, and was not politically well known. In November 1830, the Whigs came to power under Lord Grey. Melbourne was Home Secretary. During the disturbances of 1830–32