Prince Ernest Augustus, 3rd Duke of Cumberland and Teviotdale

Ernest Augustus, Crown Prince of Hanover, 3rd Duke of Cumberland and Teviotdale, was the eldest child and only son of George V of Hanover and his wife, Marie of Saxe-Altenburg. Ernest Augustus was deprived of the thrones of Hanover upon its annexation by Prussia in 1866 and later the Duchy of Brunswick in 1884. Although he was the most senior male-line descendant of George I, II, and III, the Duke of Cumberland was deprived of his British peerages and honours for having sided with Germany in World War I. Ernest Augustus was the last Hanoverian prince to hold a British royal title and the Order of the Garter.