On the death of the tenth Earl in 1789 the earldom became dormant, while the baronies of Hastings, Hungerford, Botreaux and De Moleyns passed on to his sister Elizabeth, the wife of John Rawdon, 1st Earl of Moira. Their son, the second Earl of Moira, inherited the four baronies on his mother's death in 1808. In 1816 he was created Marquess of Hastings. Lord Hastings married Flora Mure-Campbell, 6th Countess of Loudoun. Their son, the second Marquess, also inherited the Earldom of Loudoun from his mother. He married Barbara, 20th Baroness Grey de Ruthyn. On the death in 1868 of their younger son, the fourth Marquess (who had also succeeded his mother as Baron Grey de Ruthyn), the marquessate became extinct, the Scottish earldom of Loudoun passed on to his eldest sister, while the Baronies of Hastings, Hungerford, Botreaux, De Moleyns and Grey de Ruthyn fell into abeyance between the sisters.