The 1921 Stanley Cup Final was contested by the National Hockey League (NHL) champion Ottawa Senators and the Pacific Coast Hockey Association (PCHA) champion Vancouver Millionaires. The Senators defeated Vancouver three games to two in the best-of-five-game series to become the first team to win back-to-back Cup championships since the 1912–13 Quebec Bulldogs. Won the 1921 Stanley Cup Final on April 4, 1921. Wiki link