Rideau Hall in the context of "Sussex Drive"

Ottawa is the capital city of Canada. It is located in the southern portion of the province of Ontario, at the confluence of the Ottawa River and the Rideau River. Ottawa borders Gatineau, Quebec, and forms the core of the Ottawa–Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). As of 2021, Ottawa had a city population of 1,017,449 and a metropolitan population of 1,488,307, making it the fourth-largest city and fourth-largest metropolitan area in Canada.

Ottawa is the political centre of Canada and the headquarters of the federal government. The city houses numerous foreign embassies, key buildings, organizations, and institutions of Canada's government; these include the Parliament of Canada, the Supreme Court, the residence of Canada's viceroy, and the Office of the Prime Minister.

The orders, decorations, and medals of Canada comprise a complex system by which Canadians are honoured by the country's sovereign for actions or deeds that benefit their community or the country at large. Modelled on its British predecessor, the structure originated in the 1930s, but began to come to full fruition at the time of Canada's centennial in 1967, with the establishment of the Order of Canada, and has since grown in both size and scope to include dynastic and national orders, state, civil, and military decorations; and various campaign medals. The monarch in right of each Canadian province also issues distinct orders and medals to honour residents for work performed in just their province. The provincial honours, as with some of their national counterparts, grant the use of post-nominal letters and or supporters and other devices to be used on personal coats of arms.

The monarch is regarded as the fount of all honours—as the monarch is the only person who may create new national honours—and acts as the Sovereign of all of Canada's orders; he, or other members of the royal family, will conduct inductions or present medals. In Canada, the monarch is represented by the governor general, who also carries out investitures and distributes awards in the sovereign's name. As such, administration of the honours system is the responsibility of the Chancellery of Honours at Rideau Hall, which is a part of the Office of the Secretary to the Governor General of Canada. The governor general also sets out, via order-in-council, the order of precedence for the wearing of insignia, decorations, and medals. Provincial and territorial honours are similarly awarded by their respective lieutenant governors or commissioners.