Lady Sarah Spencer was born at the Spencer seat of
Althorp in
Northamptonshire on 29 July 1787, and was the eldest daughter of the
Whig politician Sir
George Spencer, 2nd Earl Spencer (1758–1834) and his wife
Lady Lavinia Bingham (1762–1831). Sarah Spencer married Sir
William Henry Lyttelton in March 1813, after an engagement of two months. He succeeded his half-brother to the
barony of Lyttelton in 1828, upon which they began residing at
Hagley Hall in Worcestershire. They had five children, two daughters Caroline (1816–1902) and Lavinia (1821–1850), and three sons
George (1817–1876), Spencer (1818–1889) and William (1820–1884). On 25 July 1839 her eldest son George (by then 4th Baron) married Mary, the daughter of Sir
Stephen Richard Glynne, 8th Baronet. The marriage took place at
Hawarden, the seat of
William Ewart Gladstone who was simultaneously marrying Mary's sister
Catherine. George became a distinguished classical scholar like his father, but committed suicide in 1876 by throwing himself down the stairs. Sarah's daughter, Lavinia, was later to marry Reverend Henry Glynne, brother of Catherine and Mary Glynne. ==Lady-in-waiting==