This stunning gold, garnet and seed pearl demi-parure set once belonged to Alice Keppel, King Edward VII's favourite mistress and a relative of Camilla, Duchess of Cornwall.

Born Alice Frederica Edmonstone, Alice grew up at Duntreath Castle, the family seat of the Edmonstone baronets in Scotland and was the youngest child of the 4th Baronet, Sir William Edmonstone.

As the wife of The Honourable George Keppel, she was famed during the Edwardian era for her charm and enigmatic beauty. In 1898, at the age of 29 she caught the eye of 56 year-old future King Edward VII, and became his mistress until his death.

Alice proved to be the King's most favoured mistress, his wife Alexandra of Denmark, even liked Keppel in comparison to her husband's previous mistress. Edward ensured Keppel financially gained from their relationship as he gave her stocks in a rubber company which earned her a sizeable profit, which would be in the millions in today's money.

Alice's youngest daughter Sonia Cubitt is the great-grandmother of Camilla, Duchess of Cornwall.

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