Career

She succeeded to the Earldom on 5 December 1766, when her mother died without male issue. By his Lordship, she had an only surviving daughter, Mary, the fourth Countess. The Marquess of Thomond died in consequence of his horse falling with him in Grosvenor Square, on 10 February 1808, in his 85th year.

The Countess of Orkney died on the 10th of May 1790.