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 Peniston Lamb, 1st Viscount Melbourne Peniston Lamb, 1st Viscount Melbourne (29 January 1745 – 22 July 1828), known as Sir Peniston Lamb, 2nd Baronet, from 1768 to 1770, was a British politician who sat in the House of Commons from 1768 to 1793. He was the father of Prime Minister William Lamb, 2nd Viscount Melbourne. Lamb was the son of Sir Matthew Lamb, 1st Baronet, and his wife Charlotte (née Coke). He was educated at Eton College from 1755 to 1762 and entered Lincolns Inn in 1769. He succeeded in the baronetcy on his father's death on 6 November 1768