Henrietta Louisa Fermor, Countess of Pomfret (née Jeffreys; 15 November 1698 – 15 December 1761), was an English letter writer.
She was born in 1698 in Leicester Square, London,[1] the only surviving child of John Jeffreys, 2nd Baron Jeffreys of Wem, Shropshire, by his wife, Lady Charlotte Herbert, daughter and heiress of Philip, Earl of Pembroke and Montgomery (by his wife, Henriette de Kérouaille, sister of Charles II's mistress Louise, Duchess of Portsmouth).
On 14 July 1720, Lady Henrietta Louisa Jeffreys married Thomas Fermor, 2nd Baron Leominster, who in the following year was created Earl of Pomfret, or Pontefract, Yorkshire.
[4] A letter of thanks, enclosed in a silver box, was presented to her by the university, 25 February 1755,[5] and a poem in her honour was published at Oxford in the following year.
Horace Walpole mocked Lady Pomfret, speaking of her "paltry air of significant learning and absurdity", and saying she was utterly devoid of humour.