I was reading the Wikipedia page of Queen Elizabeth, and when I came across reading her trip to Canada, apparently the Québec Separation movement was plotting her assassination. "Before her tour through parts of Quebec in 1964, the press reported that extremists within the Quebec separatist movement were plotting Elizabeth's assassination". (From Wikipedia). Now Obviously this is Wikipedia and their not exactly reliable for information. However, what would have happened if she did get killed? Would the Quebec Separation movement die down earlier?