The 4th Earl was in 1904 appointed as Governor General of Canada by King Edward VII, on the recommendation of Prime Minister of the United Kingdom Arthur Balfour, to replace the Earl of Minto as viceroy and occupied that post until succeeded by Prince Arthur, Duke of Connaught and Strathearn, in 1911. Grey travelled extensively in Canada and was active in Canadian political affairs, including national unity, leaving behind him a number of legacies, the most prominent being the Grey Cup.