Isabella Ingram-Seymour-Conway, Marchioness of Hertford

Isabella Anne Seymour-Conway, Marchioness of Hertford (7 July 1759 – 12 April 1834) was an English landowner, courtier and a mistress of King George IV when he was Prince of Wales.

[1] Tall, handsome, and elegant,[2] she caught the attention of the Prince of Wales most likely at a ball or concert at Manchester House, the London home of the Hertfords.

George Canning, speaking for the party in power, made use of these comments to say that, if Lady Hertford was really responsible for the prince's political decisions, she was "Britain's guardian angel".

[1] Lavish entertainments were held at Hertford House attended by the Prince, members of the royal family and visiting nobles, including for victory celebrations in 1814.

[1] Here she busied herself with charitable works, being the patron or member of many events and societies, and was noted for her benevolence to the poor as well as her generosity to the servants at Temple Newsam who held an annual ball and supper in the house.

[1] Her obituary in The Leeds Intelligencer described her as 'Her intellectual character, and high attainments, formed the least part of her excellencies; however enlightened her mind, her heart was warmer still.