The Marquess of Aberdeen is a title in the peerage of the United Kingdom, created in 1866. The title is associated with the Aberdeen family, particularly known for their contributions to British politics and society. The first holder, George Gordon, was a prominent politician who served as the Governor General of Canada. The Marquessate is part of the Scottish nobility and is linked to the Aberdeenshire region. The title has been passed down through generations, often involving members of the family in various public service roles, including diplomacy and local governance.