was born on 6 October 1731 and died on 27 March 1814. On 7 February 1747 she married James Fitzgerald, 20th Earl of Kildare and 1st Duke of Leinster, becoming Emily Fitzgerald, Duchess of Leinster. The couple had at least nineteen children, eleven of whom survived to adulthood. Fourteen of her children predeceased her. Lord George Simon FitzGerald was recognized as the son of Lord Kildare and Emily Mary Lennox, but in fact was the biological child of the Fitzgerald children's tutor, William Ogilvie. In 1774, a year after her husband died in 1773, Emily outraged society in Ireland by marrying Ogilvie in France. With Ogilvie she had four more children. The couple returned from France in 1779.
Louisa (1743–1821)
was born on 5 December 1743. On the death of her father in 1750 and mother in 1751, when she was eight years old, she went to Ireland to live with her elder sister Emily in accordance with the provisions of her father's will. In 1758 she married Thomas Conolly, of Castletown, County Kildare, becoming Louise Conolly. The couple had no children. Louisa was involved in charitable works in Castletown, including the building of an industrial school and several other buildings. She managed her husband's estate after his death.
Sarah (1745–1826)
was raised in Ireland by her sister Emily, in accordance with the provisions of her father's will, her parents having died when she was six years old. She caught the eye of the young Prince of Wales, later George III, who after ascending the throne hinted that he was considering her as a wife but never proposed. In 1762 she married Charles Bunbury. They had no issue. Lady Sarah embarked on an adulterous affair with Lord William Gordon and bore him a daughter, called Louisa Bunbury, in 1768. Bunbury divorced her in 1776. In 1781, Lady Sarah contracted a much happier second marriage with Hon. George Napier, by whom she had eight children.
Cecilia (1750–1769)
Cecily Margaret Lennox, sometimes called Cecilia, was born in 1750. Her parents died in 1750 and 1751 when she was only a year old, and Cecilia, along with her sisters Louisa and Sarah, was raised by her sister Emily in Ireland. As a young woman, she fell ill with a wasting disease—possibly tuberculosis—and her older siblings sent her first to Lyons Gate and then to France in a vain effort to recover her strength. She died in Paris on 13 November 1769.
While four Lennox sisters lived to adulthood and a fifth lived until she was 19, three others died in infancy: Louisa Margaret, Anne, and Margaret. The Lennox sisters had two brothers who lived to adulthood, Charles Lennox, 3rd Duke of Richmond, and Lord George Lennox, as well as two others who died in infancy.
Dramatization
In 1999, the BBC adapted Stella Tillyard's book as a six-part miniseries called Aristocrats.