Elizabeth Thynne, Viscountess Weymouth

Elizabeth Thynne, Viscountess Weymouth, born circa 1711, was formerly known as Lady Elizabeth Sackville. She was the eldest daughter of Lionel Sackville, 1st Duke of Dorset, and his wife Elizabeth. Elizabeth Thynne passed away on 19 June 1729.

In her early childhood, Elizabeth inherited Longleat House and its associated estates as well as the viscountcy, following her family's titles and holdings. The inheritance came when she was approximately four years old.

On 6 December 1726, Elizabeth married Thomas Thynne, who held the title of 2nd Viscount Weymouth. The marriage took place at Whitehall in London. It has been reported that Elizabeth died "before cohabitation," although this statement appears to be inaccurate as it occurred more than two years after their marriage. The marriage was likely an arranged union, common among aristocratic families at the time, often intended to secure political or social alliances. After the wedding, both the bride and groom probably returned to their respective homes to complete their education and did not begin living together until they reached a suitable age.

At the time of her death, her husband was traveling abroad. It was common for members of the aristocracy to undertake extended journeys on the Continent, known as the Grand Tour, which served educational and social purposes.

Elizabeth Thynne was buried at Longbridge Deverill in Wiltshire, a traditional burial site for the Thynne family. She and Thomas Thynne did not have any children. Following her death, Thomas Thynne married again; his second wife was Lady Louisa Carteret.

There are no further details provided regarding her life, education, or the circumstances of her death beyond her burial location and the timeline of her marriage and death.