Georgiana Cavendish, Duchess of Devonshire (née Spencer; ; 7 June 1757 – 30 March 1806), was an English aristocrat, socialite, political organiser, author, and activist. Born into the Spencer family, married into the Cavendish family, she was the first wife of William Cavendish, 5th Duke of Devonshire, and the mother of the 6th Duke of Devonshire.

As the Duchess of Devonshire, she garnered much attention and fame in society during her lifetime. With a preeminent position in the peerage of England, the Duchess was famous for her charisma, political influence, beauty, unusual marital arrangement, love affairs, socializing, and notorious for her gambling addiction, leading to an immense debt.

Georgiana Cavendish, Duchess of Devonshire

She was the great-great-great-great aunt of Diana, Princess of Wales. Their lives, centuries apart, have been compared in tragedy. She was also a great-great-great-aunt of Elizabeth II by marriage through the queen's maternal grandmother.

Georgiana Cavendish, Duchess of Devonshire

Early life and family

The Duchess was born Miss Georgiana Spencer, on 7 June 1757, as the first child of John Spencer (later Earl Spencer) and his wife, Georgiana (née Poyntz, later Countess Spencer), at the Spencer family home, Althorp. After her daughter's birth, her mother Lady Spencer wrote that "I will own I feel so partial to my Dear little Gee, that I think I never shall love another so well." Two younger siblings followed: Henrietta ("Harriet") and George. The daughter of her sister Henrietta, Lady Caroline Lamb, would become a writer and lover of Lord Byron. John Spencer, a great-grandson of John Churchill, 1st Duke of Marlborough, came from a wealthy English noble family. He built a Spencer family residence at St. James's, London, and raised his children there. The parents raised Georgiana and her siblings in a happy marriage, which bears no record of there ever having been any extramarital affairs – a rarity in the era. Meanwhile, Georgiana grew to be close to her mother, who was said to favour Georgiana over her other children.

Georgiana Cavendish, Duchess of Devonshire

When her father assumed the title of Viscount Spencer in 1761, she became The Honourable Georgiana Spencer. In 1765, her father became Earl Spencer, and she Lady Georgiana Spencer.

Marriage and children

On her seventeenth birthday, 7 June 1774, Lady Georgiana Spencer was married to society's most eligible bachelor, William Cavendish, the 5th Duke of Devonshire (aged 25). The wedding took place at Wimbledon Parish Church. It was a small ceremony attended only by her parents, her paternal grandmother Lady Cowper, one of her prospective brothers-in-law, and her soon-to-be sister-in-law, the Duchess of Portland. Her parents were emotionally reluctant to let their daughter go, but she was wed to one of the wealthiest and most powerful men in the land. Her father, who had always shown affection to his children, wrote to her, "My Dearest Georgiana, I did not know till lately how much I loved you; I miss you more every day and every hour". Mother and daughter continued to correspond throughout their lives, and many of their letters survive.

From the beginning of the marriage, the Duke of Devonshire, who was called "the Duke" by his family and friends, proved to be an emotionally reserved man who did not meet Georgiana's emotional needs. The spouses also had little in common. He would seldom be at her side and would spend nights at Brooks's playing cards. The Duke continued with adulterous behaviour throughout their married life, and discord followed pregnancies that ended in miscarriage or failure to produce a male heir.

Before their marriage, the Duke had fathered an illegitimate daughter, Charlotte Williams, born from a dalliance with a former milliner, Charlotte Spencer (of no relation to the House of Spencer). This was unknown to the Duchess until years after her marriage to the Duke. After the death of the child's mother, the Duchess was compelled to raise Charlotte herself. Georgiana was "very pleased" with Charlotte, although her own mother Lady Spencer expressed disapproval: "I hope you have not talk'd of her to people". The besotted Georgiana replied, "She is the best humoured little thing you ever saw".