Caroline Osborne, Duchess of Leeds

She married secondly on 30 March 1968 to Peter Hendrik Peregrine Hoos, a grandson of Adelbert Salusbury Cockayne-Cust, 5th Baron Brownlow. The marriage was an unhappy one and the couple divorced in 1975. Later that year she married for a third time to Sir Robert Hampden Hobart, 3rd Baronet. Upon her marriage she became Lady Hobart.

Caroline married John Osborne, 11th Duke of Leeds on 22 February 1955, becoming the Duchess of Leeds. She was the duke's third wife, as he had been previously married to Irma de Malkhozouny and Audrey Young. Through this marriage, she became the stepmother of Lady Camilla Osborne, the duke's only child. Her husband died on 26 July 1963. As her husband had no sons, the Dukedom of Leeds went to his cousin Sir D'Arcy Osborne. The twelfth duke, who remained unmarried, died in 1964 without any male heirs and the Dukedom went extinct. As such, Caroline was the last Duchess of Leeds.

As a child, Caroline and her parents had to be evacuated from Jersey during World War II. She was presented at court as a debutante in the late 1940s.

Caroline Fleur Osborne, Duchess of Leeds, later Caroline Hobart, Lady Hobart, (née Vatcher; 18 May 1931 – 16 July 2005) was a British portraitist and landscape painter. As the third wife of John Osborne, 11th Duke of Leeds, she was the last Duchess of Leeds. She was known professionally as Caroline Leeds.

Caroline Fleur Vatcher was born on 18 May 1931 in Jersey. She was the daughter of Colonel Henry Monckton Vatcher MC, who served as a jurat in the Judiciary of Jersey, and Beryl Methwold Walrond, a granddaughter of Henry Walrond, 9th Marquis de Vallado and great-granddaughter of James St Clair-Erskine, 2nd Earl of Rosslyn. Through her mother she is a descendant of Humphrey Walrond, who served as the deputy governor of Barbados.