Construction of the château began in 1892. The plans were drawn up by American architect Bruce Price, a New York artist who designed the majestic Windsor Station in Montreal. The architect's project included a luxury hotel with architecture reminiscent of French châteaux. He says he was inspired by the shape of a horseshoe. The château is named in honour of Louis de Buade, Count of Frontenac and twice Governor of New France. History has it that he brilliantly defended the colony against outside attacks for several years.
The original project was built by the architect with a view to being extended. In fact, extensions were built on either side of the château in 1897, 1908, 1920 and 1990. The Château de Frontenac was financed by the Canadian Pacific Railway. At the time, Canadian railway companies were building numerous hotel complexes. It was designated a National Historic Site of Canada in 1981. The Premier of Quebec, Maurice Duplessis, lived at Château de Frontenac for several years during his terms of office. Today, the luxury hotel is managed by Fairmont Hotels and Resorts. The building has UNESCO heritage status.