Canada’s Head of State
In today's constitutional monarchy, Her Majesty Queen Elizabeth II is Queen of Canada and Canada's Head of State. She is the personal embodiment of the Crown in Canada.
In Canada’s system of government, the power to govern is vested in the Crown but is entrusted to the government to exercise on behalf and in the interest of the people. The Crown reminds the government of the day that the source of the power to govern rests elsewhere and that it is only given to them for a limited duration.
Just a title like Mr Queen.