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 Bute Marquess of Bute in 1814. In 1805, he assumed by Royal licence the additional surname of Crichton before Stuart. He was succeeded by his only child, the third Marquess. He was an antiquarian, scholar, philanthropist and architectural patron and also held the post of Lord-Lieutenant of Buteshire. It was the 3rd Marquess who first converted to Catholicism (in late 1868), since which time the family have remained Catholic. His son, the fourth Marquess, was also Lord-Lieutenant of Buteshire. His grandson, John Crichton-Stuart, 6th Marquess of Bute (who succeeded his father), was Lord-Lieutenant of Buteshire from 1967 to 1975. As of