Lady Amelia Egerton, sister of the seventh and eighth Earls, married Sir Abraham Hume, 2nd Baronet. Their daughter Sophia Hume married John Cust, 1st Earl Brownlow. Their grandson John William Spencer Brownlow Egerton-Cust, 2nd Earl Brownlow (1842–1867), assumed the additional surname of Egerton and inherited the Bridgewater estates after a lengthy lawsuit (see the Baron Brownlow for additional information on the Cust family). Also, Lady Louisa Egerton, daughter of the first Duke of Bridgewater, married Granville Leveson-Gower, 1st Marquess of Stafford. Their son George Leveson-Gower, 2nd Marquess of Stafford, was created Duke of Sutherland in 1833. His second son Lord Francis Leveson-Gower assumed by Royal licence the surname of Egerton in lieu of Leveson-Gower according to the will of the third Duke of Bridgewater. In 1846 the Brackley and Ellesmere titles were revived when he was made Viscount Brackley and Earl of Ellesmere. The Hon. Thomas Egerton, of Tatton Park, Cheshire, youngest son of the second Earl of Bridgewater, was the grandfather of Hester Egerton (d. 1780). She married William Tatton. In 1780 they assumed by Royal licence the surname of Egerton in lieu of Tatton. Their great-grandson William Tatton Egerton was created Baron Egerton in 1859.