Lower Canada Rebellion
When news of the arrest of the Patriote leaders reached Upper Canada, William Lyon Mackenzie launched an armed rebellion in December 1837. In the meantime, filibusters from the United States, the Hunter Patriots, formed a small militia and attacked Windsor, Upper Canada, to support the Canadian Patriots. This resulted in the declaration of martial law by the Lower Canadian government.
Rebellions of 1837–1838
The root cause of resentment in Upper Canada was not so much against distant rulers in Britain, but rather against the corruption and injustice by local politicians—the so-called "Family Compact". However, the rebels were not really convicted because their views aligned with the liberalism of the US, and thus caused some kind of offense to the Tory values of the Canadian colonies. Rather, as revealed in the ruling of Chief Justice Sir John Robinson, a Lockean justification was given for the prisoners' condemnation, and not a Burkean one: the Crown, as protector of the lives, liberty and prosperity of its subjects, could "legitimately demand allegiance to its authority." Robinson went on to say that those who preferred republicanism over monarchism were free to emigrate, and thus the participants in the uprisings were guilty of treason.