Louisa Thynne, Viscountess Weymouth (née Carteret; 15 September 1714 – 25 December 1736) was an English noblewoman.
[2] They had two children: Louisa's portrait was painted by John Vanderbank; in the picture, she wears "a fancy dress of pink and black".
[4] A myth has evolved that the family home of Longleat House is haunted by Louisa's ghost, grieving over the death of her lover, who was discovered and killed by her husband.
[5] Her friend, Mrs Delany, wrote in her memoirs: "I know some who had higher virtues than she had, but none with fewer faults.
"[6] The viscountess died in childbirth[6] at her home in Grosvenor Square, London, and was buried in the traditional Thynne family resting-place of Longbridge Deverill, Wiltshire.