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 Aberdeen and Temair the United Kingdom. He was succeeded by his eldest son, the second Marquess, who was a member of the London County Council and served as Lord-Lieutenant of Aberdeenshire. He was childless and was succeeded by his younger brother, the third Marquess. He was notably President of the Federation of British Industries. When he died the titles passed to his eldest son, the fourth Marquess. He was a member of the Aberdeenshire County Council and Lord-Lieutenant of Aberdeenshire. He had four adopted children but no biological issue and was succeeded by his younger brother, the fifth Marquess. He was a broadcaster