Following the war, the Executive and Legislative Councils became increasingly dominated by the Family Compact, a clique of wealthy individuals led primarily by John Strachan (a member of the powerful Executive Council of Upper Canada), which emerged in 1815.
The Compact was deeply opposed to American republicanism and favoured full establishment for the Anglican church in Upper Canada.
Their increasingly authoritarian style of governance and disregard for the will of the Legislative Assembly led to demands for government that was more responsible to the people and eventually the Upper Canada Rebellion of 1837.
Opposing the Family Compact were initially an assortment of anti-establishment members, but it did not gain strength until a more formal group of reformers emerged, initially led by William Warren Baldwin starting 1820s and then by William Lyon Mackenzie in the 1830s.

The 1840 Act of Union united Upper and Lower Canada into the single Province of Canada and, from this point until Confederation in 1867, a joint parliament was held for the united provinces.
Following the war, the Executive and Legislative Councils became increasingly dominated by the Family Compact, a clique of wealthy individuals led primarily by John Strachan (a member of the powerful Executive Council of Upper Canada), which emerged in 1815. The Compact was deeply opposed to American republicanism and favoured full establishment for the Anglican church in Upper Canada. Their increasingly authoritarian style of governance and disregard for the will of the Legislative Assembly led to demands for government that was more responsible to the people and eventually the Upper Canada Rebellion of 1837. Opposing the Family Compact were initially an assortment of anti-establishment members, but it did not gain strength until a more formal group of reformers emerged, initially led by William Warren Baldwin starting 1820s and then by William Lyon Mackenzie in the 1830s.
The 1840 Act of Union united Upper and Lower Canada into the single Province of Canada and, from this point until Confederation in 1867, a joint parliament was held for the united provinces.
Legislative Assembly of Upper Canada