Constitutional oligarchy

A constitutional oligarchy is a form of government in which government power is exercised on behalf of multiple sovereigns. A sovereign, or the representative thereof - i.e., a governor-general, a sovereign lieutenant, or an elected representative - exercises ceremonial powers in combination with other co-equal sovereigns. Together, the sovereign representatives would also wield reserve powers to dissolve the government at the request of the legislature or parliament (a vote of no-confidence) or in dire circumstances. A constitutional oligarchy would probably integrate the British (Canadian) monarch as one of the sovereigns.