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.
Matthew Whitworth-Aylmer, 5th Baron Aylmer
Lord Aylmer had no previous experience as a civil administrator and no political experience. He was unable to pacify the growing demands in Lower Canada for responsible government and, in 1834, the radical Assembly of Lower Canada passed 92 "resolutions of grievance" including a demand that Aylmer be recalled. Lord Aylmer exacerbated ethnic tensions in Lower Canada by favouring the English over the French. The deterioration of the situation led to his recall in 1835. His administration may have been a contributing factor to the Lower Canada Rebellion of 1837.