Marquess of Linlithgow the Baron Rankeillour for more information on this branch of the family). The Hon. James Hope-Wallace, second son of the fourth Earl, was a lieutenant-colonel in the army and sat as a Member of Parliament. Charles Dunbar Hope-Dunbar, grandson of the Hon. Charles Hope, third son of the fourth Earl, proved his claim to the Dunbar Baronetcy of Baldoon (created in 1664) in 1916 and became the 6th Baronet (see Hope-Dunbar baronets). Lord John Hope, younger twin son of the second Marquess, was a prominent Conservative politician and was created Baron Glendevon in 1964. Marquess of Linlithgow Marquess of Linlithgow,
Marquess of Northampton its Royal Charter. Lord Northampton married Margaret Douglas-Maclean-Clephane, daughter of Major-General Douglas Maclean Clephane. He was succeeded by his eldest son, the third Marquess. In 1831 he assumed by Royal licence the additional and principal surname of Douglas. When he died the titles were inherited by his younger brother, the fourth Marquess. He was an admiral in the Royal Navy. Lord Northampton assumed in 1851 by Royal licence the additional surname of Maclean and in 1878 upon succeeding to the titles that of Douglas. He was succeeded by his second but eldest surviving son, the fifth Marquess. He represented Stratford-on-Avon