@packetcat the biggest constitutional question i think was https://en.wikipedia.org/wiki/Succession_to_the_Throne_Act,_2013 and apparently it was settled in 2020?

i think there’s still a tiny bit of controversy because Canada’s constitution has changed a fair bit since the last change in monarch, and some aspects haven’t really been tested, for example…

« Constitutional scholar Phillippe Lagassé argues that as the Succession to the Throne Act, 2013, and court rulings upholding the law, section 41(a) of the Constitution Act, 1982, which requires a constitutional amendment passed with the unanimous consent of the provinces, applies only to the "office of the Queen", but not who holds that office, and that therefore "ending the principle of symmetry with the United Kingdom can be done with the general amending procedure, or even by Parliament alone under section 44 of the Constitution Act, 1982."[101][102]

Constitutional scholar Ted McWhinney has also argued that a future government of Canada could begin a process of phasing out the monarchy after the eventual demise of Elizabeth II "quietly and without fanfare by simply failing legally to proclaim any successor to the Queen in relation to Canada". This would, he claimed, be a way of bypassing the need for a constitutional amendment that would require unanimous consent by the federal parliament and all the provincial legislatures.[103] However, Ian Holloway, Dean of Law at the University of Western Ontario, criticized McWhinney's proposal for its ignorance of provincial input and opined that its implementation "would be contrary to the plain purpose of those who framed our system of government." » per wikipedia @ https://en.wikipedia.org/wiki/Monarchy_of_Canada#Succession_and_regency