Flag of Quebec
|Design||A blue field with a white cross and a white fleur-de-lys in each of the four blue rectangles.|
The flag of Quebec, called the Fleurdelisé, was adopted for the province by the government of Quebec, during the administration of Maurice Duplessis. It was the first provincial flag officially adopted in Canada, first shown on January 21, 1948, at the Parliament Building of the National Assembly in Quebec City. Quebec's Flag Day (January 21) commemorates its adoption each year, though for some time it was celebrated in May.
A 2001 survey by the North American Vexillological Association ranked the Fleurdelisé as the best provincial or territorial flag, and the third-best of the flags of all U.S. and Canadian provinces, territories, and states. 
Its white fleurs-de-lis (symbols of purity) and blue field (symbolizing Heaven) come from a banner honouring the Virgin Mary. One such was reputedly carried by French-Canadian militia at General Louis-Joseph de Montcalm's victory at Carillon.